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Does Weymouth flood? 230 postcodes in Weymouth are in the Environment Agency's rivers-and-sea flood-risk data (81 High, 41 Medium likelihood) — the breakdown is further down this page.
No official flood warning is active nearby and the closest river stations are within normal ranges.
Updated 2026-10-09 15:12:02 UTC · Official GOV.UK warnings · Flood preparation & help guide
Weymouth is a seaside town and civil parish in the Dorset district, in the ceremonial county of Dorset, England. Situated on a sheltered bay at the mouth of the River Wey, 7 miles (11 km) south of the county town of Dorchester, Weymouth had a population of 53,416 in 2021. It is the third-largest settlement in Dorset after Bournemouth and Poole.
Ordnance Survey places 230 postcodes in Weymouth in the Environment Agency's rivers-and-sea flood-risk dataset (Risk of Flooding from Rivers and Sea). Each postcode is counted once, under the worst band any of its properties reaches; together they hold 2,502 properties in the EA dataset's likelihood bands.
| EA likelihood band | Postcodes (worst band) | Properties in the EA dataset | of which homes |
|---|---|---|---|
| High | 81 | 498 | 288 |
| Medium | 41 | 399 | 260 |
| Low | 60 | 683 | 528 |
| Very low | 48 | 922 | 780 |
| All bands | 230 | 2,502 | 1,856 |
This dataset covers flooding from rivers and the sea only — one of five flood sources. Surface water, groundwater, sewers and reservoirs are assessed separately, so a postcode missing from it is not proof that a place cannot flood. The band describes the land around properties (allowing for defences), not any single address and not today's conditions.
…and 130 more at-risk postcodes, listed on the district pages below.
Flood-risk bands: © 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.
Two mapped watercourses are about the same distance from the middle of Weymouth's gauges: an unnamed stream (about 550 m) and an unnamed lake (about 560 m), so this page cannot say which one is nearer to you.
Distances along the river are from the point on each watercourse nearest the middle of Weymouth's gauges. From Ordnance Survey’s river map (OS Open Rivers), which leaves out small streams, ditches and culverts, so a nearer one may exist. This describes where water goes on the map; it says nothing about flooding at any address. Contains OS data © Crown copyright and database rights 2026.
Weymouth is monitored by 2 Environment Agency river level stations on the River Wey, the Tide, in Dorset. Water levels are updated every 15 minutes, providing real-time flood monitoring for the area.
The River Wey is monitored by 1 station (Broadwey). The Tide is monitored by 1 station (Weymouth). Each station records water levels continuously, with data synced to FloodRadar every 5 minutes.
There are 8 Environment Agency flood warning areas within 10km of Weymouth. When the EA issues a flood warning for any of these areas, it will appear on this page. These include: River Wey from Upwey to Weymouth including Church Street, Little Mead, Nottington Lane, Nottington Farm and Almas Palace; The Sea Life Centre and the Preston Beach Road area of Lodmoor; The Gurka Bar on Lakeside Walk, Nothe Parade and Hope Street in Weymouth; Albert Street, Brownlow Street, Stuarts Ct, Brunswick Terrace, Chelmsford Street, Crescent Street, Derby Street, Hardwick Street, King Street, Lennox Street, Park Street, Penny Street, Queen Street, Ranelagh Rd, Stanley St and Walpole St in Weymouth.
There are 26 storm overflows within 5km of Weymouth. None of the 26 with a reporting monitor are currently discharging. Enable "Sewage" on the map above to see their locations.
6 of them, nearest first, with their own page of live status and past discharges:
If flooding is forecast in Weymouth, call Floodline on 0345 988 1188 for the latest information. Move valuables upstairs, turn off gas and electricity if safe to do so, and avoid walking or driving through flood water. Sign up for flood warnings on any station page above to receive email alerts when water levels rise. For emergency numbers, a preparation checklist and insurance guidance, see our flood help & preparation guide.
Weymouth gets about 871 mm of rain a year on average (wettest month November, 112 mm; driest May, 48 mm). That is 25% drier than the UK as a whole, which averages 1,163 mm a year. See the rain gauges →
A thirty-year average for the area, not a forecast and not a flood risk on its own. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.1 km away. Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.
No recorded flood outline within ~5 km of the Weymouth town centre means no flood was mapped here, which is not evidence none happened: the Environment Agency mapped only some floods, mapping effort rose sharply after about 2000, and surface-water flooding is largely absent from this record. Open the recorded-floods map →
Current verdict: Normal. No official flood warning is active nearby and the closest river stations are within normal ranges.
Weymouth has river level monitoring on River Wey, Tide — 2 monitoring stations in total.
Use the GOV.UK Check for Flooding service (check-for-flooding.service.gov.uk) or call Floodline on 0345 988 1188 (24 hours). You can also set up free FloodRadar email or browser alerts from any station page above.
Follow official advice: move valuables and vehicles to safety, never walk or drive through flood water, turn off gas and electricity if safe, and check on vulnerable neighbours. See our flood preparation guide at floodradar.co.uk/flood-help.
No recorded flood outline is mapped around the Weymouth town centre means no flood was mapped here, which is not evidence none happened: the Environment Agency mapped only some floods, mapping effort rose sharply after about 2000, and surface-water flooding is largely absent from this record. FloodRadar has separately logged 10 flood warnings or alerts for the Dorset area since February 2026. See the flood history link below.
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