Does Haywards Heath flood?
What the Environment Agency's rivers-and-sea flood-risk data says about Haywards Heath
Ordnance Survey places 36 postcodes in Haywards Heath 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 202 properties in the EA dataset's likelihood bands.
| EA likelihood band | Postcodes (worst band) | Properties in the EA dataset | of which homes |
|---|---|---|---|
| High | 8 | 17 | 13 |
| Medium | 15 | 69 | 63 |
| Low | 13 | 99 | 68 |
| Very low | 0 | 17 | 16 |
| All bands | 36 | 202 | 160 |
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 Haywards Heath
Environment Agency gauges within 10 km of Haywards Heath watch Salfords Stream, River Ouse.
-
Scrasebridge
Salfords Stream · 1.3 km away 0.06 m
normal range · 28 min ago -
Lindfield Bridge
River Ouse · 2.0 km away 1.26 m
normal range · 28 min ago -
Ardingly
River Ouse · 3.1 km away 0.10 m
normal range · steady · 28 min ago -
Freshfield Bridge
River Ouse · 4.9 km away -0.03 m
normal range · steady · 28 min ago -
Goldbridge
River Ouse · 10.0 km away 0.30 m
normal range · 28 min ago
Distances are from the middle of Haywards Heath'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 Haywards Heath
The nearest watercourse on the river map is Scrase Stream, about 80 m from the middle of Haywards Heath's at-risk postcodes. It flows into the River Ouse about 4.6 km downstream.
- Next gauge downstreamScrasebridge, about 1.6 km along the river.
Normal · easing · 28 min ago
After that, Freshfield Bridge, about 6.9 km along the river. - Storm overflows5 storm overflows are traced upstream of Scrasebridge on the river map. See them on its page.
- Nearest gauge upstreamNone on the river map within 30 km upstream.
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 Scrase Stream nearest the middle of Haywards Heath'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 Haywards Heath
6 Environment Agency flood warning areas lie within 10 km of Haywards Heath. The EA has issued 179 flood warnings and alerts for them since 2006, most recently on 27 Aug 2026.
-
Scrase Bridge Stream & West Common Stream at Haywards Heath and Lindfield
12 warnings and alerts since 2006, latest Aug 2026 0.6 km -
Scrase Bridge Stream at Lindfield including the West Common Stream
2 warnings and alerts since 2006, latest May 2024 1.0 km -
Sussex River Ouse at Lindfield Bridge including Pims Lock
17 warnings and alerts since 2006, latest Jan 2026 2.1 km -
Sussex River Ouse and tributaries from Slaugham to Ardingly including the Shell Brook
4 warnings and alerts since 2006, latest Nov 2022 3.5 km -
Sussex River Ouse from Freshfield Bridge to Sharpsbridge including Sheffield Park Station and Fletching Mill
13 warnings and alerts since 2006, latest May 2024 4.8 km -
Upper Ouse and tributaries from Slaugham to Barcombe Mills
131 warnings and alerts since 2006, latest Feb 2026 7.2 km
Recorded floods near Haywards Heath
Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of Haywards Heath, most recent first. Records, not floods: no outline on the record is not evidence a place has not flooded. See them on the map →
- 22 Jan 2009 — 07421J701FEO_Jan2009_Middle Ouse Main river
Rainfall near Haywards Heath
Haywards Heath gets about 909 mm of rain a year on average (wettest month October, 108 mm; driest June, 55 mm). That is 22% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 2.5 km from the place centre.
The nearest rain gauge, Rainfall station (3.3 km away), recorded 2.7 mm in the last 24 hours and 80.0 mm in the last 7 days (latest reading 28 min ago).
At-risk postcodes in Haywards Heath
Every postcode Ordnance Survey places in Haywards Heath that appears in the EA's rivers-and-sea dataset, worst band first. Each links to its own flood-risk page.
High likelihood (8)
Medium likelihood (15)
Low likelihood (13)
Postcode districts
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.