Does Lewisham flood?

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

Ordnance Survey places 113 postcodes in Lewisham 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 4,782 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 Lewisham

Environment Agency gauges within 10 km of Lewisham watch River Quaggy, River Ravensbourne, River Pool, Spring Brook, Thames Tideway, The Beck, Kyd Brook.

• Manor House Gardens
  River Quaggy · 1.4 km away 0.05 m
  normal range · steady · 32 min ago
• Catford Hill
  River Ravensbourne · 2.5 km away 0.09 m
  normal range · 32 min ago
• Winsford Road
  River Pool · 3.1 km away 0.08 m
  normal range · 32 min ago
• Downham Lane
  Spring Brook · 4.2 km away Sensor under review
  reading not shown
• Beckenham Park
  River Ravensbourne · 4.3 km away 0.52 m
  normal range · 32 min ago
• Chinbrook Park
  River Quaggy · 4.3 km away 0.06 m
  normal range · steady · 47 min ago
• Charlton Tidal
  Thames Tideway · 4.5 km away 0.99 mAOD
  rises and falls with the tide · 32 min ago
• Silvertown Tidal
  Thames Tideway · 6.0 km away 0.99 mAOD
  rises and falls with the tide · 32 min ago
• Beckenham
  The Beck · 6.3 km away 0.48 m
  normal range · 32 min ago
• Tower Pier Tidal
  Thames Tideway · 6.8 km away 0.41 mAOD
  rises and falls with the tide · 32 min ago
• Lower Camden
  Kyd Brook · 7.1 km away 0.91 m
  normal range · steady · 32 min ago
• Bromley South
  River Ravensbourne · 7.2 km away 0.06 m
  normal range · 32 min ago

Distances are from the middle of Lewisham'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 Lewisham

41 Environment Agency flood warning areas lie within 10 km of Lewisham. The EA has issued 222 flood warnings and alerts for them since 2006, most recently on 25 Oct 2026.

• Ravensbourne at Lewisham, Including Ladywell, London Borough of Lewisham
  no warning on record since 2006 0.5 km
• Ravensbourne at Deptford, London Boroughs of Lewisham and Greenwich
  no warning on record since 2006 1.8 km
• River Quaggy Flood Alleviation Scheme at Kidbrooke, Lee and Hither Green Including Sutcliffe Park, London Boroughs of Lewisham and Greenwich
  no warning on record since 2006 2.0 km
• Ravensbourne from Bellingham to Catford, Including Beckingham Park, London Borough of Lewisham
  no warning on record since 2006 3.5 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 3.5 km
• River Thames at Deptford including west Deptford, New Cross Gate and Southwark Park
  no warning on record since 2006 3.6 km
• Pool River at Bell Green and New Beckenham, London Boroughs of Lewisham and Bromley
  no warning on record since 2006 3.9 km
• River Quaggy at Chinbrook, Mottingham and Eltham, London Boroughs of Bromley, Lewisham and Greenwich
  3 warnings and alerts since 2006, latest Feb 2020 3.9 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 3.9 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 4.1 km
• Properties on Meadow Lane, Amblecote Road and Chinbrook Road at risk of flooding from the River Quaggy at Chinbrook Meadows
  2 warnings and alerts since 2006, latest Dec 2022 4.5 km
• River Thames at South Bermondsey including the Den and areas between the Old Kent Road and the railway line
  no warning on record since 2006 4.5 km

Recorded floods near Lewisham

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

• 14 Sep 1968 — 06SeptemberAutumn1968 Main river
• 1 Nov 1965 — 06NovemberWinter1965 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
• 1 Jan 1928 — TTD_FEO_1928 Main river

Rainfall near Lewisham

Lewisham gets about 605 mm of rain a year on average (wettest month October, 66 mm; driest March, 37 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), 2.0 km from the place centre.

The nearest rain gauge, Rainfall station (8.1 km away), recorded 1.8 mm in the last 24 hours and 57.6 mm in the last 7 days (latest reading 32 min ago).

At-risk postcodes in Lewisham

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

High likelihood (66)

Medium likelihood (26)

Low likelihood (12)

Very low likelihood (9)

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.