Does Sutton on Sea flood?
What the Environment Agency's rivers-and-sea flood-risk data says about Sutton on Sea
Ordnance Survey places 121 postcodes in Sutton on Sea 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 2,472 properties in the EA dataset's likelihood bands.
| EA likelihood band | Postcodes (worst band) | Properties in the EA dataset | of which homes |
|---|---|---|---|
| High | 0 | 0 | 0 |
| Medium | 73 | 1,113 | 934 |
| Low | 48 | 1,314 | 1,189 |
| Very low | 0 | 45 | 28 |
| All bands | 121 | 2,472 | 2,151 |
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 Sutton on Sea
-
Boygrift Tidal
Tide · 2.2 km away 0.49 mAOD
rises and falls with the tide · 37 min ago
Distances are from the middle of Sutton on Sea'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.
The watercourse nearest Sutton on Sea
The river map has no watercourse within 1 km of the middle of Sutton on Sea's at-risk postcodes.
That means this spot is not on the river map, not that there is no water here: Ordnance Survey’s river map (OS Open Rivers) leaves out small streams, ditches and culverts. Contains OS data © Crown copyright and database rights 2026.
Flood warning areas near Sutton on Sea
12 Environment Agency flood warning areas lie within 10 km of Sutton on Sea. The EA has issued 36 flood warnings and alerts for them since 2006, most recently on 22 Oct 2025.
-
Mablethorpe, Trustthorpe and Sutton on Sea including Sandilands
2 warnings and alerts since 2006, latest Jan 2017 0.7 km -
Trusthorpe, Sutton on Sea, Huttoft Bank frontage, Sandilands and Roman Bank
2 warnings and alerts since 2006, latest Jan 2017 2.3 km -
Theddlethorpe to Huttoft including Mile Lane, Hagnaby and Thorpe
no warning on record since 2006 3.0 km -
Alford to Mablethorpe including Mile Lane, Church Lane, Cheltenham Way and Winchester Drive
no warning on record since 2006 3.2 km -
Tidal flooding of areas near the Lincolnshire coastline from Tetney Haven to Gibraltar Point
18 warnings and alerts since 2006, latest Oct 2025 3.7 km -
Mablethorpe frontage including Victoria Road, Seaholme Road, Gibraltar Road and North Promenade
2 warnings and alerts since 2006, latest Jan 2017 4.5 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 7.0 km -
Anderby, Thurlby, Mumby, Cumberworth, Helsey and Listoft including Sea Road, Long Lane and Willoughby Road
no warning on record since 2006 7.6 km -
Anderby Creek to Chapel St Leonards frontage including Anderby Road
2 warnings and alerts since 2006, latest Jan 2017 8.1 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 8.5 km -
Theddlethorpe including Saltfleet Road, Station Road, Brickyard Lane and Sea Lane
2 warnings and alerts since 2006, latest Jan 2017 8.7 km -
Chapel St Leonards and Hogsthorpe including the A52, Sea Lane, Maiden Lane and Stone's Lane
2 warnings and alerts since 2006, latest Jan 2017 9.5 km
Recorded floods near Sutton on Sea
Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of Sutton on Sea, most recent first. Records, not floods: no outline on the record is not evidence a place has not 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 Sutton on Sea
Sutton on Sea gets about 636 mm of rain a year on average (wettest month October, 66 mm; driest March, 39 mm). That is 45% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.0 km from the place centre.
The nearest rain gauge, Rainfall station (14.4 km away), recorded 3.0 mm in the last 24 hours and 56.4 mm in the last 7 days (latest reading 37 min ago).
At-risk postcodes in Sutton on Sea
Every postcode Ordnance Survey places in Sutton on Sea that appears in the EA's rivers-and-sea dataset, worst band first. Each links to its own flood-risk page.
Medium likelihood (73)
Low likelihood (48)
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.
Flood-risk bands: © Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this map are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH). © Crown Copyright and Database Rights 2025 OS AC0000807064. This product is produced in part from PAF® and Multiple Residence Data, the copyright in which is owned by Royal Mail Group Limited and/or Royal Mail Group plc. All rights reserved. Licence number AC0000807064.
Recorded Flood Outlines, flood warning areas and warning history © Environment Agency copyright and/or database right 2025. Licensed under the Open Government Licence v3.0.
River levels and rainfall: Environment Agency real-time flood-monitoring data, updated every 15 minutes (Open Government Licence v3.0).
Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.
Place names: Contains OS data © Crown copyright and database rights 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.