Best time to swim in Keflavík in Iceland Sea temperature by month

Do you want to swim in the sea in Keflavík in Iceland? But when is the best time to go to be sure to have pleasant water for swimming in Keflavík and be able to swim without catching cold? This month, or a different one? The answer is on this page, with the sea water temperature by month in Keflavík, based on the average temperatures recorded in previous years.

Best time to swim in Keflavík: the water temperature by month

Do you feel like swimming in Keflavík in Iceland? Discover the average sea temperature for each month of the year (based on previous years' records) and our opinion on swimming in the table below.

Month Sea temperature
January 42°F (min: 41°F/max: 43°F)
February 42°F (min: 40°F/max: 44°F)
March 41°F (min: 38°F/max: 43°F)
April 43°F (min: 40°F/max: 45°F)
May 45°F (min: 42°F/max: 48°F)
June 49°F (min: 46°F/max: 53°F)
July 53°F (min: 50°F/max: 56°F)
August 53°F (min: 50°F/max: 55°F)
September 50°F (min: 47°F/max: 53°F)
October 47°F (min: 44°F/max: 51°F)
November 45°F (min: 44°F/max: 47°F)
December 44°F (min: 43°F/max: 46°F)

Water temperature variation in Keflavík throughout the year

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