Does Southam flood?

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

Ordnance Survey places 20 postcodes in Southam 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 92 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 Southam

Environment Agency gauges within 10 km of Southam watch River Itchen, River Leam.

• Southam Structure
  River Itchen · 1.7 km away 0.16 m
  controlled by a sluice or weir · 58 min ago
• Eathorpe
  River Leam · 7.8 km away 0.29 m
  normal range · 58 min ago
• Kites Hardwick Structure
  River Leam · 8.5 km away 0.39 m
  controlled by a sluice or weir · 58 min ago

Distances are from the middle of Southam'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 Southam

5 Environment Agency flood warning areas lie within 10 km of Southam. The EA has issued 321 flood warnings and alerts for them since 2006, most recently on 1 Mar 2026.

• River Itchen at Long Itchington including Church Road and Stonebridge Lane areas
  no warning on record since 2006 3.7 km
• River Leam at Marton including Coventry Road, North Street and Birdingbury Road
  18 warnings and alerts since 2006, latest Feb 2024 7.5 km
• River Leam at Eathorpe, Hunningham and Offchurch including Eathorpe village, Main Street in Hunningham, Welsh Road in Offchurch and Offchurch Bury Park area
  69 warnings and alerts since 2006, latest Feb 2026 8.0 km
• River Leam at Grandborough and Kites Hardwick including Hill Road, Sawbridge Road and Main Street in Grandborough and Southam Road in Kites Hardwick
  9 warnings and alerts since 2006, latest Feb 2024 8.3 km
• Low-lying land and roads between Grandborough and Leamington, including Long Itchington
  225 warnings and alerts since 2006, latest Mar 2026 9.3 km

Recorded floods near Southam

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

• 7 Apr 1998 — Ladbroke Main river
• 1 Apr 1998 — April 1998 (Lower Severn) Main river
• 20 Jan 1985 — M_LS_Jan_1985 Main river
• 1 Jan 1985 — 1985 (Lower Severn) Main river
• 1 Jul 1968 — July 1968 (Lower Severn) Main river
• 1 Jul 1968 — Long Itchington Main river

Rainfall near Southam

Southam gets about 656 mm of rain a year on average (wettest month August, 66 mm; driest March, 40 mm). That is 44% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.1 km from the place centre.

The nearest rain gauge, Rainfall station (7.4 km away), recorded 0.0 mm in the last 24 hours and 1,946.6 mm in the last 7 days (latest reading 58 min ago).

At-risk postcodes in Southam

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

High likelihood (6)

Medium likelihood (4)

Low likelihood (10)

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.