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Weston-super-Mare, North Somerset
Up to Very low likelihood
Properties in BS23 1QG sit in the Environment Agency's Very low flood-likelihood band (worst property). The band is the worst found in the postcode — it describes the land around properties (defence-adjusted, rivers & sea), not any single address, and not today's conditions.
| Likelihood band | Annual chance | Properties | Of which homes |
|---|---|---|---|
| High | greater than 3.3% | 0 | 0 |
| Medium | 1% – 3.3% | 0 | 0 |
| Low | 0.1% – 1% | 0 | 0 |
| Very low | below 0.1% | 19 | 9 |
Over a 25-year mortgage, a property in a very low-likelihood area has less than a 3% chance of flooding at least once.
BS23 1QG gets about 903 mm of rain a year on average (wettest month November, 103 mm; driest April, 58 mm). That is 22% drier than the UK as a whole, which averages 1,163 mm a year.
A thirty-year average for the surrounding area, not a measurement at this address and not a flood risk on its own: a dry area floods when a storm sits over it, and a wet one may drain away perfectly well. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.2 km away. Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.
The ground here sits at about 8 m above sea level and falls 16 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the south-west, 0.8 m higher.
The river map has no watercourse within 1 km of the centre of BS23 1QG.
That means this spot is not on the river map, not that there is no water here: Ordnance Survey’s river map (OS Open Rivers) leaves out small streams, ditches and culverts. Contains OS data © Crown copyright and database rights 2026.
Because properties in the very low likelihood band; 2 recorded flood outlines mapped nearby; 148 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around BS23 1QG. The small panels are illustrative previews of the report's per-layer map views — the full report draws each layer for real, plus recorded extents, defences and a building picker on an interactive map.
Warnings cover flood areas, not individual addresses.
| Date | Mapped flood extent | Approx. distance |
|---|---|---|
| Dec 1981 | EA112_Coastal_Weston_1981 | ~0.5 km |
| Jan 1936 | EA112_Coastal_Weston_super_Mare_1936 | ~0.7 km |
These are extents the Environment Agency has mapped, not a list of every flood. Records, not floods: no outline on the record is not evidence a place has not flooded. The full report tests whether any extent covered the exact spot.
2013-14 UK winter floods (2013, 24 warnings nearby) ▶ replay it here · Eleanor (2018, 5 warnings nearby) ▶ replay it here · Eunice (2022, 2 warnings nearby) ▶ replay it here · Brian (2017, 2 warnings nearby) ▶ replay it here
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Congresbury | Congresbury Yeo | 12.1 km | 7.37 m | 7.67 m |
| Iwood | Congresbury Yeo | 13.3 km | 1.00 m | 1.47 m |
| Cheddar Gorge | Cheddar Yeo | 16.3 km | 0.36 m | 0.64 m |
Live levels, predictions and rain-response behaviour are on each gauge's page and in the property report.
| Overflow | Discharges into | Distance | Spills | Hours |
|---|---|---|---|---|
| Knightstone Overflow | Weston Bay (e) | 0.7 km | 0 (2024) | 0 |
| — | 0.7 km | 0 (2024) | 0 | |
| Black Rocks Cso | Axe Estuary(e) | 3.1 km | 24 (2024) | 207 |
| Locking Village Pumping Station | Trib Of Uphill Great Rhne | 3.9 km | 10 (2024) | 49 |
Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.
10 mapped flood-defence assets within 500 m — nearest ~251 m (wall, embankment, flood gate). Defences reduce risk, never remove it.
The interactive flood-risk map with a building picker (your exact house, not the postcode), the 2050s climate view, surface-water and planning flood zones at your building, exact recorded-flood distances, year-by-year warning charts, watercourses including culverted streams, an insurance outlook with the Flood Re rules, and a printable document with every dataset receipt — start with the free preview, unlock for £19.
At-risk postcodes near BS23 1QG — all in the BS23 district.
© Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this map are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH). © Crown Copyright and Database Rights 2025 OS AC0000807064. This product is produced in part from PAF® and Multiple Residence Data, the copyright in which is owned by Royal Mail Group Limited and/or Royal Mail Group plc. All rights reserved. Licence number AC0000807064. Place names: Contains OS data © Crown copyright and database rights 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0. Recorded Flood Outlines and warning history © Environment Agency copyright and/or database right 2025. Storm-overflow figures: EA Event Duration Monitoring (England); live overflow status © the water companies, incl. Dŵr Cymru Welsh Water and Scottish Water. Flood defences © Environment Agency (OGL v3). This page summarises public area-level data — it is not a flood-risk survey and not a substitute for the official GOV.UK service. All data sources & licences. More postcodes: the BS23 district.