Best time to swim in Hanko in Finland Sea temperature by month

Do you want to swim in the sea in Hanko in Finland? But when is the best time to go to be sure to have pleasant water for swimming in Hanko 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 Hanko, based on the average temperatures recorded in previous years.

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

Do you feel like swimming in Hanko in Finland? 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 35°F (min: 31°F/max: 41°F)
February 33°F (min: 31°F/max: 35°F)
March 33°F (min: 31°F/max: 35°F)
April 36°F (min: 31°F/max: 39°F)
May 43°F (min: 32°F/max: 54°F)
June 54°F (min: 45°F/max: 63°F)
July 63°F (min: 55°F/max: 71°F)
August 65°F (min: 57°F/max: 71°F)
September 59°F (min: 52°F/max: 67°F)
October 51°F (min: 44°F/max: 58°F)
November 45°F (min: 39°F/max: 52°F)
December 40°F (min: 33°F/max: 47°F)

Water temperature variation in Hanko throughout the year

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