Best time to swim in Mljet on the Croatian Islands Sea temperature by month

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

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

Do you feel like swimming in Mljet on the Croatian Islands? Discover the average sea temperature for each month of the year (based on previous years' data) and our opinion on swimming in the table below. For more information on the sea temperature of a specific month, click on the month's name in the table.

Month Sea temperature
January 58°F (min: 55°F/max: 60°F)
February 58°F (min: 57°F/max: 59°F)
March 58°F (min: 57°F/max: 60°F)
April 61°F (min: 58°F/max: 63°F)
May 66°F (min: 60°F/max: 72°F)
June 74°F (min: 68°F/max: 79°F)
July 78°F (min: 74°F/max: 82°F)
August 78°F (min: 74°F/max: 82°F)
September 76°F (min: 71°F/max: 81°F)
October 70°F (min: 65°F/max: 75°F)
November 65°F (min: 62°F/max: 68°F)
December 61°F (min: 57°F/max: 65°F)

Water temperature variation in Mljet throughout the year

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