United Kingdom: water temperature

At sea, 13.8 °C on average across 15 stations, from 10.9 °C (Bouée ancrée 64045) to 16.3 °C (Bouée ancrée 62170). In fresh water, 10.4 °C on average across 96 stations, from 7.0 °C (Us Harehope (TILL)) to 16.9 °C (Flag Fen (COUNTER DRAIN)).

See on the map

Sea and ocean

Lakes and rivers

Where to swim, month by month

The normal sea temperature each month along the coast: pick a month to see where the water is warmest and whether you can swim.

• January 8.8 °C · up to 10.2 °C
• February 7.9 °C · up to 9.5 °C
• March 7.9 °C · up to 9.4 °C
• April 8.5 °C · up to 9.8 °C
• May 9.9 °C · up to 11.7 °C
• June 12.2 °C · up to 14.4 °C
• July 14.1 °C · up to 16.6 °C
• August 15.0 °C · up to 17.5 °C
• September 14.3 °C · up to 16.9 °C
• October 12.9 °C · up to 15.4 °C
• November 11.5 °C · up to 13.5 °C
• December 10.0 °C · up to 11.6 °C

Warmest water today

Where these numbers come from

Every value is a real reading from an instrument, at its position: a buoy, a wharf, a river or lake station. It keeps the time it was measured. A reading too far from those of nearby stations is marked with a “?”. Between stations, the map gives a satellite or model estimate, always labelled as such.

Sources: NOAA NDBC, NOAA OSMC (réseau GTS), Rivières d'Angleterre. Sources and credits

Nearby

• Ireland 8 stations · sea 13.5 °C
• Netherlands 90 stations · sea 13.2 °C · fresh water 12.2 °C
• Denmark 29 stations · sea 11.4 °C
• Germany 132 stations · sea 11.2 °C · fresh water 11.0 °C
• France 18 stations · sea 17.6 °C
• Switzerland 91 stations · fresh water 10.5 °C