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Photo: Robin Lucas · CC BY-SA 2.0

Water temperature in the United Kingdom

English Channel 23.2 °C, North Sea 21.4 °C, Celtic Sea 22.5 °C. The coldest spot is Rede, Birdhope Bridge at 11.4 °C. As of September 20, 2026, 606 locations from Environment Agency, Regional Coastal Monitoring Programmes and Cefas.

23.2 °C
warmest spot · English Channel, Dawlish Warren Beach
11.4 °C
coldest · Rede, Birdhope Bridge
18.1 °C
average of all spots
606
locations

Updated on September 20, 2026

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The warmest spot of each kind of water

Regions

United Kingdom, region by region

8 regions, each with today's range and its best-known spots. Tap one to open the region's list.

Right now

606 spots, 3 kinds of water

19 lakes87 rivers500 coasts & beaches

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About the data

601 readings are measurements from official and open networks, above all Environment Agency, Regional Coastal Monitoring Programmes and Cefas; 5 values come from models. Beyond temperature, this page carries tides for 457 coastal spots and wave height at 71 buoys. Added in the last 30 days: Lee, Springfield Park, Lee, Lea Bridge Weir and Thames, Brentford Barge and 137 more.

All spots

By region, with today's reading

English Channel205 spots
and 85 more spots in the app
North Sea148 spots
and 28 more spots in the app
Celtic Sea82 spots
Irish Sea30 spots
Bristolkanal20 spots
Atlantic13 spots
Thames9 spots
Stour5 spots
Other waters and lidos94 spots
Dee, Chester19.3 °C
Bure, Acle17.4 °C
Teme, Ludlow16.1 °C
Ehen, Oxbow14.3 °C
Don, Middle14.0 °C

Check first, then swim.

All 606 spots with history, BrrScore and alerts, free in the app.

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