Best time to swim in Koh Tao in Thailand Sea temperature by month

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

Best time to swim in Koh Tao: the water temperature by month

Do you feel like swimming in Koh Tao in Thailand? 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 82°F (min: 81°F/max: 83°F)
February 83°F (min: 81°F/max: 84°F)
March 84°F (min: 82°F/max: 86°F)
April 86°F (min: 83°F/max: 89°F)
May 86°F (min: 85°F/max: 89°F)
June 86°F (min: 84°F/max: 88°F)
July 86°F (min: 85°F/max: 87°F)
August 85°F (min: 83°F/max: 87°F)
September 85°F (min: 83°F/max: 86°F)
October 85°F (min: 83°F/max: 87°F)
November 85°F (min: 83°F/max: 87°F)
December 83°F (min: 81°F/max: 86°F)

Water temperature variation in Koh Tao throughout the year

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