Does Deal flood?

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

Ordnance Survey places 258 postcodes in Deal 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 3,531 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 Deal

Environment Agency gauges within 10 km of Deal watch River Stour.

• Sandwich Quay Tidal
  River Stour · 6.7 km away 0.59 mAOD
  rises and falls with the tide · 29 min ago

Distances are from the middle of Deal'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 Deal

7 Environment Agency flood warning areas lie within 10 km of Deal. The EA has issued 92 flood warnings and alerts for them since 2006, most recently on 26 Oct 2026.

• Areas at risk of coastal flooding from Pegwell Bay to Kingsdown, including Deal
  1 warning or alert since 2006, latest Dec 2013 3.4 km
• North and South Streams from Eastry and Northbourne to the East of Sandwich, including Finglesham and Hacklinge
  2 warnings and alerts since 2006, latest Jan 2016 4.0 km
• North and South Streams from Eastry and Northbourne to Sandwich, including Hacklinge
  no warning on record since 2006 4.0 km
• Areas at risk of coastal flooding from Ramsgate to Kingsdown including Sandwich and Deal
  85 warnings and alerts since 2006, latest Oct 2026 4.8 km
• Sandwich and the wider area, including sections of the A257 and A256
  2 warnings and alerts since 2006, latest Dec 2013 7.4 km
• Tidal River Stour at Discovery Park including the Great Stonar area
  2 warnings and alerts since 2006, latest Dec 2013 8.0 km
• Areas at risk of coastal flooding from North Stonar to Pegwell, including Richborough Port, Stonelees, Sandwich Road and Pegwell Bay
  no warning on record since 2006 9.9 km

Recorded floods near Deal

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

• 11 Jan 1978 — 07308A500_JAN1978_Stour Marshes_Pegwell Bay to Dea Sea
• 1 Feb 1953 — 07309A500_FEB1953_Sandwich Bay_Deal Sea

Rainfall near Deal

Deal gets about 719 mm of rain a year on average (wettest month October, 90 mm; driest March, 40 mm). That is 38% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 0.6 km from the place centre.

The nearest rain gauge, Rainfall station (2.4 km away), recorded 4.5 mm in the last 24 hours and 84.9 mm in the last 7 days (latest reading 29 min ago).

At-risk postcodes in Deal

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

High likelihood (35)

Medium likelihood (28)

Low likelihood (88)

Very low likelihood (107)

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.