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Does Hayes flood?

Greater London
44postcodes in the EA rivers-and-sea dataset
12river gauges within 10 km
12years with a mapped flood record within 5 km
🏠 Thinking of buying in Hayes? Get the detailed Property Flood-Risk Report for any Hayes 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 Hayes

Ordnance Survey places 44 postcodes in Hayes 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 796 properties in the EA dataset's likelihood bands.

EA likelihood bandPostcodes (worst band)Properties in the EA datasetof which homes
High96659
Medium12724
Low29558530
Very low5145136
All bands44796749

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 Hayes

Environment Agency gauges within 10 km of Hayes watch Yeading Brook, Yeading Brook (Eastern Arm), River Crane, River Brent, The Roxbourne, River Pinn, Frays River.

Distances are from the middle of Hayes'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 Hayes

The nearest watercourse on the river map is Yeading Brook, about 390 m from the middle of Hayes's at-risk postcodes. It flows into the River Crane about 3.4 km 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 Yeading Brook nearest the middle of Hayes'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 Hayes

33 Environment Agency flood warning areas lie within 10 km of Hayes. The EA has issued 1,274 flood warnings and alerts for them since 2006, most recently on 26 Oct 2026.

Recorded floods near Hayes

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

…and 1 earlier recorded flood on the map.

Rainfall near Hayes

Hayes gets about 659 mm of rain a year on average (wettest month November, 72 mm; driest March, 42 mm). That is 43% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.9 km from the place centre.

At-risk postcodes in Hayes

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

High likelihood (9)

UB3 4AHUB3 4QXUB4 0BHUB4 0BPUB4 0EGUB4 0EQUB4 0JZUB4 0NGUB4 8DD

Medium likelihood (1)

UB4 0EF

Low likelihood (29)

UB3 1DDUB3 4QZUB4 0DGUB4 0ERUB4 0ESUB4 0HAUB4 0LYUB4 0LZUB4 0NAUB4 0NBUB4 0NDUB4 0NHUB4 0NJUB4 0NLUB4 0NNUB4 0NPUB4 0NQUB4 0NRUB4 0NSUB4 0PAUB4 0PBUB4 0PLUB4 0PWUB4 0XPUB4 0XRUB4 0XSUB4 0XTUB4 0XUUB4 8NJ

Very low likelihood (5)

UB4 0JJUB4 0JWUB4 0NUUB4 0NYUB4 8BZ

Postcode districts

UB3 · 4UB4 · 40

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