Water temperature of the English Channel in august Where to swim in the English Channel in august 2025?

Several countries border the seaside of the English Channel, including: England, Brittany, North of France, Normandy and Picardy. We measure the water temperature daily in these countries and archive it in order to calculate monthly averages, like those of the month of august.

The seasonal average for the water temperature in the month of august is between 62°F and 65°F. The lowest sea temperature measured this month is 60°F and the highest is 67°F.

The sea temperature map of the English Channel in august

The map below presents a monthly average of the water temperature of the English Channel for the month of august for several coastal cities. You can zoom and move around on the map. By clicking on the markers, you can see sea temperature details by city in august.