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Does Trevarrack flood?

Cornwall
22postcodes in the EA rivers-and-sea dataset
5river gauges within 10 km
2tidal gauges within 10 km
23years with a mapped flood record within 5 km
🏠 Thinking of buying in Trevarrack? Get the detailed Property Flood-Risk Report for any Trevarrack postcode — official risk band, recorded floods since 1703, warning history, river behaviour and nearby storm overflows. £19 one-off, instant. Learn more →

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

Ordnance Survey places 22 postcodes in Trevarrack 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 268 properties in the EA dataset's likelihood bands.

EA likelihood bandPostcodes (worst band)Properties in the EA datasetof which homes
High81817
Medium8120113
Low37561
Very low35552
All bands22268243

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 Trevarrack

Environment Agency gauges within 10 km of Trevarrack watch Lariggan River, Newlyn Coombe River, River Hayle, River Stennack.

Distances are from the middle of Trevarrack'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 Trevarrack

The nearest watercourse on the river map is Ponsandane Brook, about 110 m from the middle of Trevarrack's at-risk postcodes. It flows on to the sea.

A gauge downstream shows water that has already passed this point; one upstream sees it first. Distances along the river are from the point on Ponsandane Brook nearest the middle of Trevarrack's at-risk postcodes. From Ordnance Survey’s river map (OS Open Rivers), which leaves out small streams, ditches and culverts, so a nearer one may exist. This describes where water goes on the map; it says nothing about flooding at any address. Contains OS data © Crown copyright and database rights 2026.

Flood warning areas near Trevarrack

8 Environment Agency flood warning areas lie within 10 km of Trevarrack. The EA has issued 620 flood warnings and alerts for them since 2006, most recently on 30 Sep 2026.

Recorded floods near Trevarrack

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

…and 51 earlier recorded floods on the map.

Rainfall near Trevarrack

Trevarrack gets about 1,197 mm of rain a year on average (wettest month November, 148 mm; driest May, 66 mm). That is close to 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 (3.0 km away), recorded 1.4 mm in the last 24 hours and 66.4 mm in the last 7 days (latest reading 29 min ago).

At-risk postcodes in Trevarrack

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

High likelihood (8)

TR18 3ASTR18 3BTTR18 3BUTR18 3DPTR18 3DWTR18 3NDTR18 3NFTR18 3NG

Medium likelihood (8)

TR18 3BXTR18 3BYTR18 3DGTR18 3DNTR18 3DQTR18 3DRTR18 3NATR18 3RQ

Low likelihood (3)

TR18 3AYTR18 3DUTR18 3RA

Very low likelihood (3)

TR18 3AXTR18 3AZTR18 3BA

Postcode districts

TR18 · 22

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.

All data sources & licences