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Does Winnersh flood?

Wokingham
30postcodes in the EA rivers-and-sea dataset
12river gauges within 10 km
8years with a mapped flood record within 5 km
🏠 Thinking of buying in Winnersh? Get the detailed Property Flood-Risk Report for any Winnersh postcode — official risk band, recorded floods since 1703, warning history, river behaviour and nearby storm overflows. £19 one-off, instant. Learn more →

What the Environment Agency's rivers-and-sea flood-risk data says about Winnersh

Ordnance Survey places 30 postcodes in Winnersh 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 532 properties in the EA dataset's likelihood bands.

EA likelihood bandPostcodes (worst band)Properties in the EA datasetof which homes
High85422
Medium43022
Low18448190
Very low000
All bands30532234

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.

Rivers and live river levels near Winnersh

Environment Agency gauges within 10 km of Winnersh watch River Loddon, River Thames, Emm Brook, River Kennet, The Cut, River Blackwater.

Distances are from the middle of Winnersh's at-risk postcodes. Tidal and structure gauges are shown as readings only — the tide and sluice gates move them, not floods. A gauge with no recent reading shows no level.

The watercourse nearest Winnersh

The nearest watercourse on the river map is an unnamed stream, about 460 m from the middle of Winnersh's at-risk postcodes. It flows into the River Loddon about 520 m downstream.

A gauge downstream shows water that has already passed this point; one upstream sees it first. Distances along the river are from the point on an unnamed stream nearest the middle of Winnersh's at-risk postcodes. 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.

Flood warning areas near Winnersh

23 Environment Agency flood warning areas lie within 10 km of Winnersh. The EA has issued 456 flood warnings and alerts for them since 2006, most recently on 28 Feb 2026.

Recorded floods near Winnersh

Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of Winnersh, most recent first. Records, not floods: no outline on the record is not evidence a place has not flooded. See them on the map →

Rainfall near Winnersh

Winnersh gets about 655 mm of rain a year on average (wettest month November, 74 mm; driest March, 41 mm). That is 44% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.1 km from the place centre.

The nearest rain gauge, Rainfall station (3.7 km away), recorded 3.0 mm in the last 24 hours and 67.4 mm in the last 7 days (latest reading 25 min ago).

At-risk postcodes in Winnersh

Every postcode Ordnance Survey places in Winnersh that appears in the EA's rivers-and-sea dataset, worst band first. Each links to its own flood-risk page.

High likelihood (8)

RG41 5HERG41 5HHRG41 5HQRG41 5JJRG41 5JNRG41 5JRRG41 5LLRG41 5QS

Medium likelihood (4)

RG41 5HDRG41 5PDRG41 5RNRG41 5TF

Low likelihood (18)

RG41 5HARG41 5HBRG41 5HJRG41 5HZRG41 5JPRG41 5RBRG41 5RDRG41 5RTRG41 5SLRG41 5STRG41 5SXRG41 5SZRG41 5TERG41 5TGRG41 5TPRG41 5TQRG41 5TSRG41 5TU

Postcode districts

RG41 · 30

Sources

FloodRadar summarises public flood data. It is not a flood-risk survey of any property, and it does not replace official GOV.UK flood warnings or the GOV.UK long-term flood risk service.

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.

Recorded Flood Outlines, flood warning areas and warning history © Environment Agency copyright and/or database right 2025. Licensed under the Open Government Licence v3.0.

River levels and rainfall: Environment Agency real-time flood-monitoring data, updated every 15 minutes (Open Government Licence v3.0).

Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.

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.

All data sources & licences