Does Clenchwarton flood?

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

Ordnance Survey places 60 postcodes in Clenchwarton 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 1,146 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 Clenchwarton

Environment Agency gauges within 10 km of Clenchwarton watch River Great Ouse, River Nar.

• King's Lynn Tidal
  River Great Ouse · 2.6 km away 3.18 mAOD
  rises and falls with the tide · 38 min ago
• Freebridge Tidal
  River Great Ouse · 2.8 km away 3.18 m
  rises and falls with the tide · 38 min ago
• Setchey Bridge
  River Nar · 8.2 km away 0.39 m
  normal range · 38 min ago
• Magdalen Bridge Tidal
  River Great Ouse · 9.0 km away No recent reading

Distances are from the middle of Clenchwarton'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 Clenchwarton

10 Environment Agency flood warning areas lie within 10 km of Clenchwarton. The EA has issued 48 flood warnings and alerts for them since 2006, most recently on 8 Oct 2025.

• Admiralty Point, Terrington St Clement, Clenchwarton, Tilney All Saints, Tilney High End, Walpole Cross Keys and Eau Brink
  no warning on record since 2006 1.8 km
• King's Lynn, West Lynn, Clenchwarton, Terrington St Clement, Walpole Cross Keys and Tilney All Saints
  44 warnings and alerts since 2006, latest Oct 2025 1.9 km
• Clenchwarton Road, Poppyfields, St Peter's Road, St Peter's Close, Hare Road, Sculthorpe Avenue, Ferry Road and Fox's Lane in West Lynn
  no warning on record since 2006 2.2 km
• Saddlebow, South Lynn, and Nelson Street, Queen Street, King Street, Central Road and Estuary Road in Kings Lynn
  no warning on record since 2006 3.3 km
• Highgate, North End, North Lynn, South Wootton, Gaywood, Fairstead and Hardwick in Kings Lynn
  no warning on record since 2006 3.9 km
• Wash Frontage and the right bank of the Tidal Nene from Walton Dam to Admiralty Point, including Walpole Marsh, Walpole Cross Keys, Bellmount and Wingland Marsh
  no warning on record since 2006 7.9 km
• Stow Bridge, Watlington, Setchey and Saddlebow
  no warning on record since 2006 8.1 km
• Saddlebow, Wiggenhall St Germans, Wiggenhall St Peter and Wiggenhall St Mary Magdalen
  no warning on record since 2006 8.5 km
• North Wootton, Wolferton, Dersingham, Ingoldisthorpe and Snettisham
  no warning on record since 2006 8.6 km
• Main Road in Narborough, Spring Lane in Marham, Lynn Road, Garage Lane and St. Germans Road in Setchey, Mill Road in Wiggenhall St. Germans, and Low Road, High Road, Maple Road and Acer Road in Saddle Bow
  4 warnings and alerts since 2006, latest Feb 2024 10.0 km

Recorded floods near Clenchwarton

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

• 1 Jan 1978 — January 1978 Tidal Event Tidal
• 31 Jan 1953 — January 1953 Tidal Event

Rainfall near Clenchwarton

Clenchwarton gets about 630 mm of rain a year on average (wettest month October, 63 mm; driest March, 39 mm). That is 46% 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 (12.1 km away), recorded 2.6 mm in the last 24 hours and 51.2 mm in the last 7 days (latest reading 23 min ago).

At-risk postcodes in Clenchwarton

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

Low likelihood (21)

Very low likelihood (39)

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.