Does Mablethorpe flood?

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

Ordnance Survey places 213 postcodes in Mablethorpe 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 7,292 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 Mablethorpe

• Boygrift Tidal
  Tide · 6.0 km away 0.58 mAOD
  rises and falls with the tide · 35 min ago

Distances are from the middle of Mablethorpe'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 Mablethorpe

11 Environment Agency flood warning areas lie within 10 km of Mablethorpe. The EA has issued 63 flood warnings and alerts for them since 2006, most recently on 28 Feb 2026.

• Mablethorpe frontage including Victoria Road, Seaholme Road, Gibraltar Road and North Promenade
  2 warnings and alerts since 2006, latest Jan 2017 0.9 km
• Theddlethorpe to Huttoft including Mile Lane, Hagnaby and Thorpe 3.0 km
• Mablethorpe, Trustthorpe and Sutton on Sea including Sandilands
  2 warnings and alerts since 2006, latest Jan 2017 3.1 km
• Alford to Mablethorpe including Mile Lane, Church Lane, Cheltenham Way and Winchester Drive 3.7 km
• Theddlethorpe including Saltfleet Road, Station Road, Brickyard Lane and Sea Lane
  2 warnings and alerts since 2006, latest Jan 2017 5.0 km
• Far extent of tidal flooding from the Lincolnshire Coastline between Tetney Haven and Gibraltar Point
  2 warnings and alerts since 2006, latest Jan 2017 5.5 km
• Tidal flooding of areas near the Lincolnshire coastline from Tetney Haven to Gibraltar Point
  18 warnings and alerts since 2006, latest Oct 2025 5.7 km
• Trusthorpe, Sutton on Sea, Huttoft Bank frontage, Sandilands and Roman Bank
  2 warnings and alerts since 2006, latest Jan 2017 6.0 km
• Claythorpe and North Reston to Saltfleet including Healey Lane, Thacker Bank, Saltfleet Road and Sea View
  4 warnings and alerts since 2006, latest Oct 2023 6.9 km
• Great Eau, Long Eau, Woldgrift Drain and Willoughby High Drain
  31 warnings and alerts since 2006, latest Feb 2026 7.9 km
• North Somercotes to Bilsby including South Somercotes, Saltfleetby St Peter, Gayton le Marsh and Maltby le Marsh 8.4 km

Recorded floods near Mablethorpe

Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of Mablethorpe, most recent first. Absence of a record does not mean a place has never flooded. See them on the map →

• 5 Dec 2013 — LNA_2013_12_Tidal_Witham_Haven Sea
• 31 Jan 1953 — LNA_1953_01_Lincolnshire Coastline Other

Rainfall near Mablethorpe

The nearest rain gauge, Rainfall station (15.6 km away), recorded 0.0 mm in the last 24 hours and 12.2 mm in the last 7 days (latest reading 35 min ago).

At-risk postcodes in Mablethorpe

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

High likelihood (18)

Medium likelihood (17)

Low likelihood (177)

Very low likelihood (1)

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.