Best time to swim in Istanbul in Turkey Sea temperature by month

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

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

Do you feel like swimming in Istanbul in Turkey? 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 48°F (min: 44°F/max: 51°F)
February 46°F (min: 43°F/max: 49°F)
March 48°F (min: 44°F/max: 51°F)
April 51°F (min: 46°F/max: 56°F)
May 61°F (min: 55°F/max: 66°F)
June 71°F (min: 65°F/max: 77°F)
July 77°F (min: 71°F/max: 82°F)
August 77°F (min: 73°F/max: 81°F)
September 74°F (min: 70°F/max: 77°F)
October 66°F (min: 60°F/max: 71°F)
November 57°F (min: 52°F/max: 62°F)
December 52°F (min: 47°F/max: 56°F)

Water temperature variation in Istanbul throughout the year

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