Climate vulnerability · experimental scores

Climate vulnerability in England: South East

Who may be vulnerable to flooding, heat, drought, severe weather and other hazards, how able they are to respond, the places that look after them and the hazards themselves, from each council down to each of its small areas (2021 LSOAs; 5,571 here, 33,755 in England). England is shown a region at a time.

9,278,063residents (Census 2021)
185small areas in England's most deprived 10% (IoD 2025)
87,608homes at high or medium flood risk from rivers or the sea
1,095storm overflows; 18,757 spills in 2025
11,367flood warnings and alerts since 2006
96,200care home beds (2,830 homes)
795GP practices
How the climate risk, exposure, vulnerability and adaptive capacity scores are worked out

Our own experimental scores, not official measures, the same as the Wales dashboard's: hazards and exposure (what is here), vulnerability (who lives here) and adaptive capacity (how able they are to respond). Each compares South East's 5,571 small areas with each other (England is built a region at a time), so 80 means more than about 80% of the region's small areas, and a figure in one region is not comparable with the same figure in another.

  1. Each measure becomes a percentile within the region: 0 for the lowest small area, 100 for the highest. Every Indices of Deprivation measure used is a score (higher is more deprived). For a hazard, an area with none scores 0 and the areas with some are ranked from just above 0 to 100.
  2. Each score is the weighted average of its measures' percentiles. A measure not held for an area is left out, never counted as zero; an area needs enough of them (shown below) to have a score.
  3. Climate risk: exposure, vulnerability and low adaptive capacity together: the cube root of the three multiplied (their geometric mean), so an area scores high only when all three are high. A council's figure is the average of its small areas'.
  4. Scenarios change exposure, and so climate risk: Now (2001-2020 climate, present flood risk); 2°C of global warming (around the 2050s; flood risk: the Environment Agency's 2050s map); 4°C of global warming (late century, high emissions; flood risk: the 2050s map, the latest the Agency maps). Heat is the days over 30°C for each; summer drying counts only with warming. Flood: now, the Environment Agency's homes at high or medium risk from rivers or the sea today; with warming, the share of the area's postcodes inside its 2050s climate change map at high or medium risk, read from FloodRadar's copy (each postcode's centre asked once). The Agency publishes that one climate change map, for the 2050s, and none for late in the century or for 4°C, so 4°C reads the 2050s map too: the latest the Agency maps, which likely understates flooding by then. Here 2°C and 4°C read the Environment Agency's 2050s map (edition 2026-06-18, 261,177 postcodes asked, 884 not known; asked between 2026-11-06 and 2026-11-07). Today's figure is a share of homes and the 2050s one a share of postcodes, so they are not compared directly; each scenario ranks the region's small areas on its own.

Vulnerability

Who lives here: how many people may find heat, flooding or other hazards hard to cope with. At least 6 measures needed.

MeasureWeight
IoD 2025 overall deprivation (IMD score)1
IoD 2025 health deprivation and disability (score)1
Aged 75 and over1
One-person households aged 66 and over1
Bad or very bad health1
Disabled under the Equality Act1
Households deprived in 3 or more dimensions1
Cannot speak English well or at all1

Exposure

What is here: the hazards mapped in or around the small area, under the chosen scenario. An area with none of a hazard scores 0 for it; the areas with some are ranked from just above 0 to 100. At least 3 measures needed.

MeasureWeight
Flooding from rivers or the sea, with defences, at high or medium risk: now, the Environment Agency's homes at risk as a share of the area's homes (Properties and Postcodes in Areas at Risk); at 2°C and 4°C, the share of the area's postcodes inside the Agency's 2050s climate change map at high or medium risk (Risk of Flooding from Rivers and Sea, Climate Change, as kept by FloodRadar), the only climate change flood map it publishes2
Storm overflow spills in the area, 2025 (water companies' returns, as kept by FloodRadar)1
Days over 30°C a year for the area's neighbourhood: 2001-2020, or with 2°C or 4°C of warming (Met Office UKCP18)1
Background NO2 at the area's centre (Defra's modelled 1 km grid)0.5
Drought now: the shortfall of the last 6 months' rainfall below the 1991-2020 normal for the council, from its rain gauges or else its Met Office area (FloodRadar); 0 at or above normal1
Met Office severe weather warnings over the council since FloodRadar began keeping them (27 September 2026), yellow 1, amber 2, red 31
Summer drying: the fall in summer rainfall for the area's neighbourhood with 2°C or 4°C of warming (Met Office UKCP18; not counted now)1

Low adaptive capacity

How hard it would be to respond, cope and recover: distance to help, car access and income. Higher means less able to adapt. At least 4 measures needed.

MeasureWeight
Minutes to the nearest GP by bus or train at 7am, one way (UBDC AI23)1
Minutes to the nearest pharmacy by bus or train at 7am1
Minutes to the nearest supermarket by bus or train at 7am1
Households without a car or van1
IoD 2025 income deprivation (share of residents)1
IoD 2025 geographical barriers to services (score: road distance to a GP, food shop, school and post office)1

Limits: equal weights are a choice, not evidence; health, disability and deprivation move together, so that pattern counts more than once; flood shares are the Environment Agency's homes at high or medium risk from rivers or the sea, with defences, over all the homes it lists in the area (postcodes with too few properties to list alone share their group's homes); surface water is not included (the Agency's national map needs a Data Services Platform account); England has no public coal tip register, so there is no coal tip measure; road noise is not included (Defra's map is read a point at a time); overflows count what lies inside the small area, not near it; heat and summer rainfall are the Met Office's figures for the area's neighbourhood (MSOA); NO2 is the nearest 1 km cell to the area's centre; severe weather counts Met Office warnings since FloodRadar began keeping them (2026-09-27); drought now is each council's rainfall shortfall against normal (FloodRadar), by its gauges or else its Met Office area. Travel minutes are UBDC's 2023 figures on 2011 small areas: a 2021 area made by merging two has none (never averaged). The weights live in data/reference/climate-england-index.json.

Map

Darker is more vulnerable or more exposed on every measure (for an IoD rank, a lower rank). Measures marked by the scenario follow it. Click a small area for its figures. Overflows sized by their spills in 2025; care homes by their beds.

Scores by council i

CouncilClimate risk nowat 2°Cat 4°CExposure (now)VulnerabilityLow adaptive capacitySmall areas with climate risk 75+ (now)
Adur41.648.146.526.562.246.40
Arun44.547.147.627.966.551.20
Ashford40.941.840.123.054.759.60
Basingstoke and Deane44.144.143.542.343.850.80
Bracknell Forest37.036.437.433.936.844.80
Brighton and Hove33.638.836.415.957.144.00
Buckinghamshire43.142.943.342.839.950.80
Canterbury40.043.939.522.160.553.60
Cherwell40.740.240.832.744.052.20
Chichester45.647.748.730.456.160.70
Crawley45.543.746.837.655.547.90
Dartford43.542.042.035.248.550.80
Dover36.544.640.914.666.158.30
Eastbourne43.549.449.523.570.152.00
East Hampshire44.044.244.940.943.950.30
Eastleigh42.042.943.239.344.945.70
Elmbridge39.738.538.746.934.742.50
Epsom and Ewell39.838.339.041.638.841.70
Fareham40.142.142.334.544.645.10
Folkestone and Hythe39.946.342.918.969.156.30
Gosport45.449.450.231.862.049.40
Gravesham43.443.144.329.060.249.10
Guildford42.141.643.139.539.451.80
Hart38.036.236.143.830.246.50
Hastings41.146.646.919.672.252.00
Havant49.549.151.839.061.653.20
Horsham36.636.938.026.040.451.70
Isle of Wight33.443.645.012.572.258.30
Lewes46.246.747.930.362.157.20
Maidstone44.646.244.734.852.650.80
Medway40.044.042.824.658.347.80
Mid Sussex40.339.140.436.439.649.30
Milton Keynes41.642.241.130.950.549.30
Mole Valley42.441.142.136.545.150.20
New Forest43.644.945.932.253.652.60
Oxford41.442.341.436.746.545.10
Portsmouth37.444.044.721.760.042.70
Reading41.341.541.133.550.044.60
Reigate and Banstead38.838.239.533.540.846.00
Rother46.949.548.628.466.959.30
Runnymede47.045.745.551.745.947.30
Rushmoor44.143.343.840.347.447.30
Sevenoaks44.243.643.537.046.354.70
Slough43.944.943.738.948.147.40
Southampton42.445.244.928.262.546.00
South Oxfordshire37.136.536.628.938.052.20
Spelthorne47.247.047.049.150.145.40
Surrey Heath42.341.541.347.236.547.60
Swale43.947.446.226.462.655.20
Tandridge46.244.746.342.045.754.70
Test Valley44.847.146.440.845.453.40
Thanet40.241.240.618.373.050.70
Tonbridge and Malling41.642.741.735.645.449.80
Tunbridge Wells37.337.438.523.947.750.40
Vale of White Horse42.541.141.141.439.451.20
Waverley43.042.343.343.939.250.20
Wealden40.841.942.427.149.455.50
West Berkshire43.044.343.339.341.752.90
West Oxfordshire37.238.337.725.842.752.20
Winchester41.342.343.234.642.253.30
Windsor and Maidenhead40.440.139.842.636.346.60
Woking42.041.040.840.042.946.00
Wokingham34.833.834.234.930.644.80
Worthing41.444.744.228.160.344.70

Each council's figure is the mean of its small areas' (percentiles within South East). How they are worked out.

People who may be vulnerable

CouncilResidentsSmall areasIn England's most deprived 10% / 20%Aged 75 and overOne-person households aged 66 and overHouseholds without a car or vanDisabled under the Equality ActBad or very bad healthProvide unpaid careCannot speak English well or at allHouseholds deprived in 3 or more dimensions
Adur64,548420 / 011.8%17.0%18.5%19.5%5.6%9.6%0.5%3.7%
Arun164,890995 / 914.3%18.3%16.9%19.7%5.4%9.2%1.4%3.1%
Ashford132,754813 / 99.1%12.4%14.4%17.1%4.6%8.9%1.3%3.0%
Basingstoke and Deane185,1521150 / 27.9%10.8%14.5%15.0%3.7%7.8%1.0%2.2%
Bracknell Forest124,598820 / 06.7%10.4%11.5%13.4%3.2%7.5%0.9%2.3%
Brighton and Hove277,09516513 / 286.4%11.4%37.4%18.7%5.1%7.8%1.2%4.7%
Buckinghamshire553,0903340 / 29.0%12.3%11.5%13.5%3.3%8.0%1.1%2.0%
Canterbury157,434924 / 1810.4%15.2%20.8%19.6%5.1%8.9%0.7%3.5%
Cherwell161,0141020 / 38.0%11.3%14.7%14.5%3.7%7.6%1.4%2.5%
Chichester124,069750 / 013.6%17.5%14.1%16.9%4.3%8.8%0.6%2.3%
Crawley118,496671 / 15.8%10.1%20.6%14.9%4.3%8.1%2.6%4.0%
Dartford116,755671 / 76.4%9.7%16.9%14.0%3.8%8.0%1.3%3.0%
Dover116,394698 / 1511.0%15.7%20.1%21.2%6.2%10.4%0.6%4.1%
Eastbourne101,692608 / 1112.4%17.8%26.5%21.6%6.3%9.7%1.2%4.7%
East Hampshire125,751740 / 011.1%13.7%9.7%15.6%3.6%8.3%0.4%2.0%
Eastleigh136,448820 / 19.2%12.6%11.9%16.0%3.8%8.2%0.5%2.1%
Elmbridge138,756820 / 08.8%13.1%11.1%11.9%2.9%7.3%0.8%1.7%
Epsom and Ewell80,933460 / 18.7%12.6%14.3%12.8%3.1%7.9%1.3%2.1%
Fareham114,511730 / 212.3%15.1%12.1%16.8%4.0%8.8%0.3%1.7%
Folkestone and Hythe109,753675 / 1511.6%16.4%20.5%21.8%6.5%10.3%0.8%4.3%
Gosport81,953565 / 159.9%15.2%20.6%20.4%5.5%9.3%0.3%3.6%
Gravesham106,906656 / 148.2%12.4%19.7%16.4%4.9%9.0%2.6%4.2%
Guildford143,648840 / 18.4%12.1%13.8%13.6%3.2%7.6%0.8%2.1%
Hart99,404590 / 09.7%12.4%7.8%12.9%2.8%7.3%0.4%1.4%
Hastings90,9905318 / 268.9%14.9%29.2%22.6%7.3%10.1%0.9%5.6%
Havant124,202799 / 2011.9%16.3%18.0%19.9%5.6%9.5%0.3%4.1%
Horsham146,782890 / 011.1%14.3%11.2%14.9%3.5%8.3%0.4%1.8%
Isle of Wight140,460893 / 1813.8%18.0%20.8%23.3%6.7%10.5%0.3%4.1%
Lewes99,911620 / 213.1%17.9%18.8%20.4%5.5%10.3%0.3%3.4%
Maidstone175,779993 / 118.9%11.9%14.6%15.9%4.3%8.6%1.3%2.9%
Medway279,78716915 / 377.2%11.8%19.2%17.4%5.1%8.6%1.1%4.2%
Mid Sussex152,564920 / 010.1%13.6%12.4%14.5%3.5%8.0%0.5%1.8%
Milton Keynes287,0421668 / 195.6%9.7%17.1%14.8%4.1%7.7%1.7%3.5%
Mole Valley87,382540 / 011.9%15.7%11.5%15.1%3.7%8.7%0.5%2.4%
New Forest175,7831142 / 314.8%17.3%11.6%18.5%4.8%9.6%0.2%2.3%
Oxford162,056842 / 65.5%10.8%32.1%14.5%3.3%6.6%2.3%3.5%
Portsmouth208,00012515 / 306.9%12.4%30.3%17.6%5.0%7.8%1.5%4.4%
Reading174,2161000 / 115.6%9.2%28.4%13.8%3.7%6.7%3.0%3.8%
Reigate and Banstead150,844900 / 18.5%12.3%13.5%14.0%3.4%7.9%0.7%2.2%
Rother93,110583 / 816.1%19.9%16.0%21.6%6.0%10.5%0.3%3.0%
Runnymede88,079520 / 18.6%12.8%13.9%14.6%3.6%7.9%0.9%2.4%
Rushmoor99,756600 / 36.9%10.1%16.3%14.3%3.7%7.3%3.7%3.3%
Sevenoaks120,513751 / 310.4%14.4%11.4%15.0%4.0%8.8%0.4%2.6%
Slough158,492840 / 84.0%7.4%20.3%11.3%3.7%6.9%5.2%4.7%
Southampton248,92115218 / 376.3%11.2%27.4%17.6%5.0%7.7%2.6%4.9%
South Oxfordshire149,090930 / 010.1%13.1%10.8%14.0%3.3%8.0%0.6%1.6%
Spelthorne102,960610 / 19.0%12.8%14.7%14.2%3.8%8.5%1.3%3.0%
Surrey Heath90,455550 / 09.7%12.2%9.9%13.6%3.2%7.7%1.0%1.8%
Swale151,6769013 / 248.5%13.0%16.6%19.5%5.7%9.8%0.7%4.7%
Tandridge87,871510 / 010.2%14.1%11.3%14.9%3.8%8.5%0.3%2.3%
Test Valley130,494810 / 210.1%13.1%11.9%15.6%3.9%8.3%0.6%2.1%
Thanet140,6038616 / 3011.0%16.4%26.1%22.9%7.2%10.4%1.1%5.1%
Tonbridge and Malling132,202780 / 29.2%12.7%12.3%15.3%4.0%8.7%0.4%2.6%
Tunbridge Wells115,307690 / 29.6%13.3%15.5%15.0%3.8%7.9%0.6%2.7%
Vale of White Horse138,912810 / 19.5%12.2%12.2%14.7%3.2%8.1%0.6%1.7%
Waverley128,221820 / 011.2%14.5%11.2%14.3%3.2%7.9%0.4%1.7%
Wealden160,156990 / 312.9%16.0%10.6%17.3%4.4%9.3%0.2%2.0%
West Berkshire161,431990 / 19.0%12.5%12.1%14.7%3.4%7.8%0.6%2.2%
West Oxfordshire114,242680 / 110.6%13.7%11.5%15.1%3.6%8.2%0.5%1.8%
Winchester127,441720 / 110.3%14.1%13.5%15.4%3.4%7.7%0.4%1.8%
Windsor and Maidenhead153,494890 / 09.0%12.5%12.7%12.3%3.0%7.4%1.0%1.9%
Woking103,946620 / 17.9%11.7%14.7%13.6%3.4%8.1%1.8%2.4%
Wokingham177,5021030 / 08.3%11.1%9.0%12.5%2.6%7.3%0.8%1.4%
Worthing111,347680 / 311.2%15.8%21.8%19.1%5.2%9.2%0.7%3.6%

Census 2021 (ONS; age 75 and over, people aged 66 and over living alone, no car, bad health and English from the census tables we keep, disability, unpaid care and deprivation from Nomis; small areas added up; the denominators are each table's own: residents, households, residents aged 5+ for carers, aged 3+ for English). English Indices of Deprivation 2025 (MHCLG, File 7): 33,755 small areas, the most deprived 10% in decile 1.

Health, care and access

CouncilGP practices (patients)Care homes (beds; with nursing)PharmaciesHospitals with an A&EFuel povertyExtra deaths in winter (2014/15 to 2018/19)
Adur4 (65,373)17 (592; 7)1008.1% (2024)29.5%
Arun14 (160,345)100 (2,964; 28)3007.8% (2024)23.1%
Ashford9 (143,657)43 (1,102; 12)1318.1% (2024)24.9%
Basingstoke and Deane9 (188,565)52 (1,521; 20)2317.1% (2024)19.9%
Bracknell Forest9 (134,192)19 (853; 7)1405.8% (2024)17.0%
Brighton and Hove30 (328,484)85 (2,113; 26)44110.9% (2024)21.4%
Buckinghamshire45 (572,736)132 (4,928; 48)5617.5% (2024)21.9%
Canterbury10 (188,280)66 (2,061; 15)2609.2% (2024)23.4%
Cherwell14 (186,902)32 (1,556; 21)2018.1% (2024)16.8%
Chichester11 (118,653)47 (1,881; 18)1419.5% (2024)24.2%
Crawley12 (148,051)16 (351; 2)1807.2% (2024)–
Dartford9 (135,788)21 (893; 10)1717.3% (2024)22.4%
Dover13 (119,468)58 (1,305; 10)14010.2% (2024)20.1%
Eastbourne8 (110,367)63 (2,054; 21)1319.4% (2024)29.8%
East Hampshire11 (126,280)54 (1,783; 17)1407.4% (2024)17.2%
Eastleigh7 (105,673)47 (1,624; 14)1706.0% (2024)26.4%
Elmbridge16 (153,771)37 (1,933; 15)1606.9% (2024)20.8%
Epsom and Ewell6 (87,135)26 (586; 6)717.6% (2024)25.7%
Fareham9 (124,092)55 (1,707; 14)1306.2% (2024)22.1%
Folkestone and Hythe15 (116,288)77 (1,601; 14)1209.8% (2024)29.8%
Gosport5 (85,069)25 (655; 10)1008.0% (2024)–
Gravesham10 (123,609)17 (683; 4)1709.3% (2024)20.4%
Guildford11 (133,117)37 (1,344; 13)1218.3% (2024)21.2%
Hart6 (110,552)19 (877; 6)1306.0% (2024)–
Hastings8 (101,445)60 (1,479; 14)8111.1% (2024)18.7%
Havant9 (131,536)47 (1,269; 8)2407.3% (2024)22.8%
Horsham13 (155,322)34 (1,420; 22)1707.5% (2024)22.3%
Isle of Wight12 (145,779)62 (1,849; 13)2619.7% (2024)20.1%
Lewes7 (114,465)43 (1,191; 11)1608.4% (2024)26.2%
Maidstone15 (185,317)45 (1,823; 19)1218.0% (2024)23.1%
Medway32 (331,743)66 (1,745; 16)4518.9% (2024)19.7%
Mid Sussex12 (167,454)52 (1,829; 21)1517.1% (2024)28.3%
Milton Keynes23 (349,977)48 (1,755; 18)4316.4% (2024)21.0%
Mole Valley9 (96,622)35 (1,172; 19)1407.7% (2024)19.9%
New Forest14 (188,640)89 (2,750; 25)3207.8% (2024)18.5%
Oxford17 (241,629)16 (703; 7)28110.6% (2024)17.6%
Portsmouth10 (235,758)29 (931; 9)32110.9% (2024)23.8%
Reading18 (251,731)32 (1,002; 7)27110.0% (2024)22.2%
Reigate and Banstead10 (129,645)75 (2,509; 28)2616.7% (2024)25.6%
Rother10 (93,176)65 (2,006; 14)1209.7% (2024)21.6%
Runnymede7 (87,109)16 (906; 9)1017.3% (2024)22.8%
Rushmoor10 (116,137)22 (799; 8)1307.1% (2024)18.6%
Sevenoaks9 (107,675)28 (1,537; 14)1708.1% (2024)21.9%
Slough14 (188,174)16 (570; 6)2519.8% (2024)16.5%
Southampton23 (324,888)52 (1,575; 12)3419.8% (2024)20.6%
South Oxfordshire14 (154,035)40 (1,818; 23)1808.3% (2024)13.9%
Spelthorne10 (109,260)17 (675; 8)1307.5% (2024)23.5%
Surrey Heath8 (114,266)35 (1,846; 20)1215.8% (2024)16.8%
Swale13 (134,421)44 (1,019; 5)2308.7% (2024)21.1%
Tandridge6 (100,728)37 (1,143; 15)1107.5% (2024)21.9%
Test Valley9 (117,959)32 (1,340; 18)1507.5% (2024)24.4%
Thanet13 (143,367)53 (1,632; 9)24110.4% (2024)22.4%
Tonbridge and Malling11 (143,806)18 (897; 8)1207.3% (2024)16.9%
Tunbridge Wells15 (131,908)31 (1,366; 17)819.3% (2024)–
Vale of White Horse8 (122,223)31 (1,554; 19)1907.8% (2024)22.6%
Waverley13 (161,467)53 (2,280; 28)1607.9% (2024)23.0%
Wealden16 (146,438)63 (2,304; 22)1908.3% (2024)17.9%
West Berkshire13 (158,465)44 (1,201; 10)1507.9% (2024)17.4%
West Oxfordshire11 (124,022)29 (1,467; 20)1608.9% (2024)20.7%
Winchester10 (134,150)38 (1,551; 14)1418.2% (2024)24.9%
Windsor and Maidenhead19 (177,730)41 (1,943; 22)2517.6% (2024)15.0%
Woking12 (124,869)27 (1,028; 9)906.9% (2024)–
Wokingham11 (170,128)45 (1,362; 12)1805.6% (2024)18.5%
Worthing8 (120,028)75 (1,987; 23)1718.8% (2024)27.5%

GP practices: NHS ODS (our copy), placed by their postcode, with registered patients (QOF list sizes). Care homes: CQC's care directory, 2 November 2026, as our hospitals job keeps it (registered care homes, not dormant, placed by their postcode). Pharmacies: OpenStreetMap. Hospitals with an A&E: our own table (CQC, NHS England). Fuel poverty (DESNZ, low income low energy efficiency) and extra deaths in winter (ONS winter mortality index, our own average of the five winters before the pandemic): council figures we already hold. Travel minutes to a GP, pharmacy, supermarket and hospital, by small area, are on the map.

Hazards

CouncilHomes at high or medium flood risk (rivers or sea)Postcodes at high or medium risk in the 2050sRiver / rain gaugesFlood warnings / alerts since 2006Storm overflowsSpills 2025 (hours)Spills 2024Days over 30°C a year: now → 2°C → 4°CSevere weather warnings (amber or red)Drought now
Adur516 (1 areas not known)11.0% (199 of 1,812 known)0 / 06 / 5111 (1)811 → 2.2 → 11.5 6 (0)75% of normal (south-east and central southern England)
Arun1,8124.3% (214 of 4,964 known)7 / 736 / 35116423 (3,542)6501.2 → 2.5 → 11.9 6 (0)75% of normal (3 gauges)
Ashford6171.6% (62 of 3,975 known)13 / 1812 / 21345624 (3,822)1,2482.5 → 5 → 19.7 5 (0)77% of normal (8 gauges)
Basingstoke and Deane774 (1 areas not known)1.2% (61 of 5,077 known)8 / 623 / 18112357 (4,539)8483.1 → 6.3 → 24.5 7 (0)68% of normal (4 gauges)
Bracknell Forest9902.2% (68 of 3,065 known)2 / 20 / 48329 (324)724.1 → 8.2 → 26.4 5 (0)75% of normal (south-east and central southern England)
Brighton and Hove880 (1 areas not known)0.8% (42 of 5,079 known)0 / 21 / 2610 (0)01.1 → 2 → 11.6 4 (0)75% of normal (south-east and central southern England)
Buckinghamshire2,3242.1% (341 of 16,136 known)28 / 1650 / 278571,219 (14,874)3,6003.7 → 7.2 → 24.7 6 (0)67% of normal (4 gauges)
Canterbury3,598 (1 areas not known)6.2% (283 of 4,564 known)14 / 922 / 1271158 (270)1511.8 → 3.9 → 16.7 5 (0)86% of normal (4 gauges)
Cherwell3520.7% (33 of 4,932 known)11 / 468 / 28425610 (6,919)1,9083.5 → 6.3 → 23.2 5 (0)75% of normal (2 gauges)
Chichester2,7487.8% (388 of 4,974 known)11 / 1899 / 391381,008 (13,172)2,0402.4 → 5 → 18.7 6 (0)77% of normal (6 gauges)
Crawley8162.5% (66 of 2,674 known)4 / 07 / 122238 (385)493.6 → 7.3 → 23.8 6 (0)75% of normal (south-east and central southern England)
Dartford264 (1 areas not known)1.9% (47 of 2,462 known)2 / 13 / 031 (2)44.5 → 8.7 → 28.1 5 (0)75% of normal (south-east and central southern England)
Dover1,0685.7% (224 of 3,933 known)8 / 95 / 150956 (84)360.7 → 1.9 → 7.8 5 (0)91% of normal (4 gauges)
Eastbourne4876.5% (187 of 2,861 known)1 / 02 / 20– (–)–0.7 → 1.3 → 8.9 6 (0)75% of normal (south-east and central southern England)
East Hampshire1610.6% (26 of 4,234 known)9 / 811 / 9115138 (1,609)4923.3 → 6.8 → 23.9 7 (0)68% of normal (3 gauges)
Eastleigh467 (1 areas not known)1.3% (45 of 3,467 known)7 / 015 / 5918231 (1,699)4963 → 6.6 → 24.6 7 (0)75% of normal (south-east and central southern England)
Elmbridge2,8426.7% (255 of 3,796 known)7 / 034 / 125477 (978)2264.3 → 9.2 → 27.9 6 (0)75% of normal (south-east and central southern England)
Epsom and Ewell2340.6% (11 of 1,892 known)4 / 00 / 026 (14)114.6 → 9.1 → 27.6 6 (0)75% of normal (south-east and central southern England)
Fareham311 (1 areas not known)2.9% (97 of 3,314 known)5 / 329 / 1851590 (257)1992.1 → 4.2 → 18.9 7 (0)75% of normal (south-east and central southern England)
Folkestone and Hythe2,1906.1% (224 of 3,675 known)3 / 1010 / 6343 (30)291.1 → 2.3 → 9.6 5 (0)86% of normal (5 gauges)
Gosport3786.1% (113 of 1,840 known)1 / 02 / 611774 (209)1071.3 → 2.4 → 13.3 7 (0)75% of normal (south-east and central southern England)
Gravesham1381.0% (23 of 2,272 known)0 / 13 / 0892 (204)843.4 → 6.7 → 24.1 5 (0)75% of normal (south-east and central southern England)
Guildford9064.7% (201 of 4,316 known)6 / 515 / 09104 (1,046)2544 → 7.8 → 25.8 6 (0)75% of normal (south-east and central southern England)
Hart9502.1% (61 of 2,973 known)8 / 02 / 1278150 (1,859)2993.6 → 7.4 → 25.6 7 (0)75% of normal (south-east and central southern England)
Hastings1,1245.0% (100 of 2,013 known)1 / 41 / 79634 (47)551 → 1.6 → 8.2 6 (0)85% of normal (2 gauges)
Havant1,7596.9% (214 of 3,108 known)6 / 254 / 25673 (17)92.8 → 5 → 19.5 7 (0)75% of normal (south-east and central southern England)
Horsham378 (1 areas not known)0.9% (37 of 4,232 known)13 / 1350 / 17627754 (7,828)1,3303.2 → 6.8 → 22.6 6 (0)85% of normal (5 gauges)
Isle of Wight1,2743.9% (198 of 5,135 known)18 / 20132 / 36762963 (6,331)1,7770.7 → 1.9 → 12 3 (0)90% of normal (7 gauges)
Lewes1,1342.0% (62 of 3,124 known)10 / 1051 / 27324647 (6,857)1,3091.6 → 2.8 → 13.9 6 (0)75% of normal (5 gauges)
Maidstone1,6683.6% (197 of 5,447 known)11 / 944 / 5930158 (959)3533 → 6.3 → 22.6 5 (0)73% of normal (3 gauges)
Medway2,0617.8% (482 of 6,188 known)0 / 29 / 18058366 (690)4373.1 → 6.2 → 22.5 3 (0)75% of normal (south-east and central southern England)
Mid Sussex260 (1 areas not known)0.3% (12 of 4,551 known)6 / 836 / 8445807 (5,737)1,3063.1 → 6.5 → 21.9 6 (0)74% of normal (3 gauges)
Milton Keynes379 (2 areas not known)0.4% (35 of 7,876 known)12 / 370 / 413203 (1,647)6404 → 7.8 → 25.4 5 (0)75% of normal (south-east and central southern England)
Mole Valley4581.7% (54 of 3,146 known)3 / 454 / 17516289 (3,350)4884.1 → 8.1 → 25.6 6 (0)77% of normal (2 gauges)
New Forest1,6253.9% (217 of 5,522 known)20 / 14116 / 52630455 (3,657)1,0392.4 → 5 → 20.4 7 (0)83% of normal (6 gauges)
Oxford3,192 (1 areas not known)6.4% (237 of 3,697 known)9 / 229 / 72143 (591)1624.1 → 7.5 → 25.8 5 (0)75% of normal (south-east and central southern England)
Portsmouth2,88815.5% (685 of 4,427 known)0 / 32 / 8916145 (312)2051.5 → 3.1 → 14.4 4 (0)75% of normal (south-east and central southern England)
Reading2,154 (1 areas not known)4.0% (150 of 3,795 known)3 / 06 / 47214 (169)504.2 → 8 → 27.1 5 (0)75% of normal (south-east and central southern England)
Reigate and Banstead5382.7% (107 of 3,914 known)6 / 210 / 09229 (2,928)3353.1 → 6.3 → 22.4 6 (0)75% of normal (south-east and central southern England)
Rother1,7853.4% (107 of 3,172 known)14 / 954 / 215591,223 (7,657)2,2891.5 → 2.4 → 12.2 6 (0)80% of normal (3 gauges)
Runnymede7,76220.9% (506 of 2,424 known)6 / 425 / 95127 (472)1044.5 → 9.5 → 28.2 6 (0)75% of normal (south-east and central southern England)
Rushmoor850.5% (12 of 2,345 known)4 / 00 / 019 (103)234 → 8.5 → 26.9 7 (0)75% of normal (south-east and central southern England)
Sevenoaks8492.3% (81 of 3,599 known)14 / 2525 / 508144 (913)2453.3 → 6.6 → 22.8 5 (0)69% of normal (11 gauges)
Slough1,730 (1 areas not known)4.0% (114 of 2,883 known)1 / 00 / 3114 (246)705 → 10.1 → 29.9 4 (0)75% of normal (south-east and central southern England)
Southampton1,9065.0% (291 of 5,814 known)5 / 238 / 1171384 (456)1693.5 → 7.1 → 25.1 4 (0)75% of normal (south-east and central southern England)
South Oxfordshire1,0842.6% (137 of 5,324 known)18 / 790 / 14522493 (7,285)1,5973.9 → 7.5 → 25.9 5 (0)80% of normal (3 gauges)
Spelthorne3,74217.5% (436 of 2,490 known)11 / 140 / 30– (–)–5 → 10.5 → 30.1 6 (0)75% of normal (south-east and central southern England)
Surrey Heath4013.8% (89 of 2,357 known)3 / 40 / 37324 (205)414 → 7.8 → 25.7 6 (0)61% of normal (2 gauges)
Swale1,41113.2% (544 of 4,115 known)1 / 810 / 17732220 (486)3442.2 → 4.2 → 18 5 (0)75% of normal (3 gauges)
Tandridge8171.7% (38 of 2,266 known)2 / 104 / 1269260 (1,875)5273 → 5.7 → 21.4 6 (0)70% of normal (3 gauges)
Test Valley7492.0% (76 of 3,842 known)35 / 6127 / 25517306 (4,827)8373 → 6.6 → 24.4 7 (0)71% of normal (2 gauges)
Thanet3431.3% (52 of 4,050 known)0 / 20 / 021 (1)21 → 1.8 → 7.1 5 (0)75% of normal (south-east and central southern England)
Tonbridge and Malling2,421 (1 areas not known)6.2% (251 of 4,043 known)6 / 65 / 19720256 (1,721)4733.3 → 6.7 → 23.3 5 (0)75% of normal (south-east and central southern England)
Tunbridge Wells1,1032.8% (108 of 3,879 known)4 / 1020 / 3738847 (5,664)1,5603 → 5.8 → 21.6 5 (0)77% of normal (2 gauges)
Vale of White Horse1,250 (1 areas not known)3.2% (138 of 4,301 known)18 / 650 / 18013363 (3,378)1,0794.2 → 7.2 → 25.6 5 (0)69% of normal (3 gauges)
Waverley8672.4% (105 of 4,376 known)7 / 626 / 26917292 (3,385)4893.8 → 7.3 → 25 6 (0)68% of normal (3 gauges)
Wealden389 (1 areas not known)1.2% (70 of 6,044 known)15 / 29128 / 426941,993 (15,595)3,9922.2 → 4 → 16.8 6 (0)76% of normal (7 gauges)
West Berkshire1,7044.5% (244 of 5,434 known)20 / 1170 / 36618572 (10,335)1,1383.5 → 6.6 → 24.4 5 (0)60% of normal (6 gauges)
West Oxfordshire5992.2% (91 of 4,117 known)12 / 412 / 32720677 (9,981)1,7293.5 → 6.2 → 22.7 5 (0)77% of normal (2 gauges)
Winchester472 (1 areas not known)2.4% (100 of 4,213 known)27 / 1386 / 49018271 (3,021)6013.3 → 6.7 → 24.5 7 (0)76% of normal (6 gauges)
Windsor and Maidenhead6,33716.8% (761 of 4,541 known)13 / 272 / 106445 (418)1664.6 → 9.4 → 28.8 5 (0)75% of normal (south-east and central southern England)
Woking5001.4% (35 of 2,589 known)4 / 09 / 93331 (414)1394.5 → 9.4 → 28.2 6 (0)75% of normal (south-east and central southern England)
Wokingham1,0422.5% (111 of 4,477 known)11 / 344 / 2606101 (1,009)3124 → 8.2 → 27.1 5 (0)75% of normal (south-east and central southern England)
Worthing1,545 (3 areas not known)4.5% (140 of 3,136 known)0 / 20 / 1775 (8)181 → 2.2 → 11.5 6 (0)75% of normal (south-east and central southern England)

Homes at flood risk: the Environment Agency's Risk of Flooding from Rivers and Sea, Postcodes in Areas at Risk (2026-06-12), residential properties at high or medium risk with defences, summed over the council's small areas (our copy, loaded weekly; no FloodRadar query). In the 2050s: the share of the council's postcodes whose centre lies inside the Environment Agency's Risk of Flooding from Rivers and Sea, Climate Change (2050s) map at high or medium risk with defences, of those whose answer is known (a postcode where the Agency publishes "Unavailable", or one FloodRadar's copy could not answer, is not known, never "no risk"; "–" when fewer than half are known or the region's shares are not yet worked out); postcodes stand in for homes. Flood risk in the 2050s: Environment Agency Risk of Flooding from Rivers and Sea — Climate Change (2050s), with defences, © Environment Agency copyright and/or database right 2025, Open Government Licence v3.0; read from FloodRadar's copy of the map. Gauges, flood warnings and overflows: FloodRadar's own copy of the Environment Agency's gauges and flood warning history (each warning area placed in its council by its point) and the water companies' storm overflow returns (a year without monitoring is left out, never 0); read 2026-11-08. Severe weather: Met Office Weather Warnings © Crown Copyright, as kept by FloodRadar. Every Met Office warning since 2026-09-27, counted in each council it named, by the council's own name, its county or its metropolitan county ("Not available": a name the Met Office has not used in a warning held). Drought now: rainfall over the last 6 months against the 1991-2020 normal, from FloodRadar's drought feed: the median of the council's rain gauges with every month complete where it has two or more, else its Met Office area; Rainfall: Met Office HadUK-Grid areal series (monthly) and its 1991–2020 averages. Contains public sector information licensed under the Open Government Licence v3.0. Heat: Met Office UKCP18 by neighbourhood (our council figures' copy of the Climate Data Portal; medians; 2001-2020, then 2°C and 4°C of global warming above pre-industrial), the mean of the council's small areas.

Critical infrastructure

Not shown for England yet: there is no single open source of substations. National Grid Electricity Distribution (the Midlands and the South West, read for Wales with the owner's token) and UK Power Networks (London, the South East and the East, open data) each publish their own; Northern Powergrid, Electricity North West and SSEN cover the rest. Hospitals with an A&E are above and on the map.

The 20 small areas at most climate risk, now (2001-2020 climate, present flood risk) i

Small areaCouncilClimate riskExposureVulnerabilityLow adaptive capacityIMD rankAged 75+Bad healthNo carMinutes to a GPHomes at flood riskPostcodes at flood risk, 2050sOverflow spills 2025Days over 30°CNO2
Rother 002A E01021103Rother71.255.280.281.45,26115.1%6.3%12.0%349.8%12.7%662.04.9
Waverley 013C E01030872Waverley70.964.376.072.917,80714.2%5.3%18.6%2313.0%12.2%04.06.4
Havant 016B E01022942Havant69.948.091.377.93,74222.5%10.2%27.2%276.0%12.2%01.06.4
Rushmoor 012B E01023108Rushmoor69.955.086.072.16,04211.0%10.0%28.4%162.2%0.0%04.08.9
Rushmoor 012A E01023107Rushmoor69.359.984.965.47,6909.5%6.9%27.1%164.9%4.3%04.08.9
Buckinghamshire 064E E01017835Buckinghamshire69.168.863.975.014,58012.2%4.9%13.0%345.4%8.1%05.012.1
Maidstone 014C E01024377Maidstone69.168.763.276.011,16811.4%5.7%10.0%3143.7%43.5%423.07.4
Runnymede 004B E01030658Runnymede69.070.673.963.018,62417.6%8.3%15.5%3177.3%83.3%05.013.0
West Berkshire 011A E01016254West Berkshire68.162.466.076.616,28213.1%6.0%11.5%436.8%7.1%313.06.4
Havant 017A E01022936Havant68.052.182.173.510,39617.6%8.4%14.9%3116.3%34.9%01.05.7
Swale 006A E01024580Swale68.048.086.675.889612.5%13.2%18.4%6824.2%21.1%51.06.3
Spelthorne 012A E01030721Spelthorne67.568.264.270.115,00912.5%5.4%7.7%3418.8%31.6%05.012.8
Tandridge 011C E01030818Tandridge67.265.861.375.116,36611.7%4.6%13.0%2351.2%58.3%03.010.1
Rother 004E E01021119Rother67.145.586.876.61,75011.6%9.3%34.7%985.7%78.9%01.05.8
Havant 009A E01022913Havant65.761.571.165.03,3617.3%7.5%35.6%1713.8%19.0%03.010.1
Epsom and Ewell 007A E01030385Epsom and Ewell65.161.882.554.08,8539.1%6.7%29.8%195.5%7.0%05.011.6
Runnymede 004A E01030656Runnymede65.170.866.758.314,6598.1%5.9%11.8%2960.9%45.0%05.015.6
Guildford 010C E01030432Guildford64.658.667.468.412,1117.8%5.6%14.4%329.7%14.0%04.07.9
Spelthorne 012D E01030724Spelthorne64.369.268.655.913,4647.3%5.7%14.4%923.5%50.0%05.014.1
Windsor and Maidenhead 011D E01016577Windsor and Maidenhead64.264.453.177.214,3608.7%3.6%10.2%4637.3%34.0%05.013.0

MHCLG English Indices of Deprivation 2025 (File 7); ONS Census 2021 (Nomis); ONS boundaries (Open Geography Portal); Environment Agency Risk of Flooding from Rivers and Sea, Properties and Postcodes in Areas at Risk (OGL v3, © Environment Agency copyright and/or database right 2025; contains OS data © Crown copyright and database right); FloodRadar's copy of the Environment Agency's gauges, flood warning history and the water companies' storm overflow returns; Met Office UKCP18 local projections (Climate Data Portal); Defra background NO2 (PCM); UBDC Accessibility Indicators 2023 (OGL); NHS ODS GP practices and patients; CQC care directory; OpenStreetMap pharmacies (ODbL). Contains OS data © Crown copyright and database right. Flood risk in the 2050s: Environment Agency Risk of Flooding from Rivers and Sea — Climate Change (2050s), with defences, © Environment Agency copyright and/or database right 2025, Open Government Licence v3.0; read from FloodRadar's copy of the map. Met Office Weather Warnings © Crown Copyright, as kept by FloodRadar. Built 2026-11-08T00:12 UTC in 8.7 s; each source kept as long as it lasts (a year for the census and boundaries, a month for the flood shares and care homes, a day for the region's dashboard, rebuilt each night). The Wales dashboard: /climate/wales.