Best time to swim in Tongatapu Island in Tonga Sea temperature by month

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

Best time to swim in Tongatapu Island: the water temperature by month

Do you feel like swimming in Tongatapu Island in Tonga? 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: 80°F/max: 84°F)
February 83°F (min: 80°F/max: 86°F)
March 83°F (min: 81°F/max: 85°F)
April 82°F (min: 79°F/max: 85°F)
May 80°F (min: 78°F/max: 83°F)
June 79°F (min: 76°F/max: 81°F)
July 77°F (min: 75°F/max: 79°F)
August 75°F (min: 73°F/max: 78°F)
September 75°F (min: 73°F/max: 78°F)
October 77°F (min: 73°F/max: 81°F)
November 78°F (min: 76°F/max: 81°F)
December 80°F (min: 77°F/max: 83°F)

Water temperature variation in Tongatapu Island throughout the year

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