Does West Ham flood?

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

Ordnance Survey places 73 postcodes in West Ham 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 2,718 properties in the EA dataset's likelihood bands.

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 West Ham

Environment Agency gauges within 10 km of West Ham watch Thames Tideway, River Roding, River Lee, Loxford Water, Ching Brook, River Quaggy.

• Charlton Tidal
  Thames Tideway · 4.0 km away -2.62 mAOD
  rises and falls with the tide · 27 min ago
• Silvertown Tidal
  Thames Tideway · 4.9 km away -2.70 mAOD
  rises and falls with the tide · 27 min ago
• Redbridge
  River Roding · 5.3 km away No recent reading
  last reported 26 Oct 2026 10:00
• Lea Bridge
  River Lee · 5.7 km away 5.87 m
  normal range · 27 min ago
• Walthamstow, Low Hall Structure
  River Lee · 6.0 km away 0.05 m
  controlled by a sluice or weir · 27 min ago
• Tower Pier Tidal
  Thames Tideway · 6.8 km away -2.88 mAOD
  rises and falls with the tide · 27 min ago
• Seven Kings Park
  Loxford Water · 7.9 km away No recent reading
  last reported 26 Oct 2026 18:00
• Walthamstow
  Ching Brook · 8.0 km away 1.06 m
  normal range · 27 min ago
• Manor House Gardens
  River Quaggy · 8.6 km away 0.05 m
  normal range · 27 min ago
• Chingford
  Ching Brook · 9.6 km away 0.22 m
  normal range · steady · 27 min ago
• Westminster Tidal
  Thames Tideway · 9.9 km away -2.47 mAOD
  rises and falls with the tide · 27 min ago

Distances are from the middle of West Ham'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.

Flood warning areas near West Ham

36 Environment Agency flood warning areas lie within 10 km of West Ham. The EA has issued 163 flood warnings and alerts for them since 2006, most recently on 25 Oct 2026.

• River Thames at Mill Meads and East Plaistow including Star Lane, Plaistow, Mill Meads and south Stratford Marshes
  no warning on record since 2006 1.1 km
• The Lower River Lee at Stratford including Mill Meads
  no warning on record since 2006 1.3 km
• The Lower River Lee from West Ham to Canning Town
  no warning on record since 2006 2.2 km
• River Thames at the Isle of Dogs north of South Dock including Canary Wharf, Blackwall, South Bromley, Poplar and Limehouse
  no warning on record since 2006 3.0 km
• River Thames at Beckton including Canning Town, Custom House, and Beckton
  no warning on record since 2006 3.4 km
• River Thames from Beckton Sewage Works to the River Lee including Beckton Gas Works, London City Airport, the ExCeL Centre, areas around the King George V, Royal Albert and Royal Victoria docks and Canning Town
  no warning on record since 2006 3.9 km
• The River Roding in Barking including East Ham
  1 warning or alert since 2006, latest Dec 2019 4.4 km
• River Thames from Woolwich Arsenal to Deptford Creek including New Charlton, the Greenwich Peninsula, the Royal Naval College and Greenwich Town Centre
  no warning on record since 2006 4.5 km
• The Lower River Lee at Hackney and Walthamstow including Lea Bridge, Hackney Marsh and Hackney Wick
  no warning on record since 2006 4.6 km
• River Thames at the Isle of Dogs south of South Dock including areas around West India and Millwall Docks, Cubitt Town, and Mudchute
  no warning on record since 2006 4.7 km
• River Thames at Beckton Sewage Works including East Ham
  no warning on record since 2006 4.7 km
• River Thames from Deptford Creek to Rotherhithe Station including east Deptford, Convoys Wharf, Surrey Docks, Canada Water and the riverside at Rotherhithe
  no warning on record since 2006 5.2 km

Recorded floods near West Ham

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

• 10 Jan 2024 — EA06JanuaryWinter2024 Drainage
• 14 Jan 2021 — eaJanuaryWinter2021
• 10 May 2020 — ea06MaySpring2020 Main river
• 1 Oct 2000 — 06OctoberAutumn2000 Main river
• 1 Jan 2000 — 06DecemberWinter2000 Main river
• 1 Jan 1987 — 06SeptemberSummer1987 Main river
• 1 Jan 1974 — 06NovemberAutumn1974 Main river
• 1 Jan 1953 — JanuaryWinter1953 Main river
• 1 Jan 1953 — TTD_FEO_1953 Sea
• 7 Mar 1947 — 06MarchSpring1947 Main river
• 1 Jan 1947 — 06MarchSpring1947 Main river
• 6 Jan 1928 — TTD_FEO_1928 Main river

…and 1 earlier recorded flood on the map.

Rainfall near West Ham

West Ham gets about 608 mm of rain a year on average (wettest month October, 67 mm; driest March, 35 mm). That is 48% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 2.1 km from the place centre.

The nearest rain gauge, Rainfall station (5.2 km away), recorded 477.6 mm in the last 24 hours and 521.0 mm in the last 7 days (latest reading 42 min ago).

At-risk postcodes in West Ham

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

Very low likelihood (73)

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.