Best time to swim in Hainan in China Sea temperature by month

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

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

Do you feel like swimming in Hainan in China? 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 70°F (min: 68°F/max: 73°F)
February 70°F (min: 67°F/max: 72°F)
March 71°F (min: 66°F/max: 75°F)
April 75°F (min: 69°F/max: 82°F)
May 82°F (min: 79°F/max: 86°F)
June 85°F (min: 82°F/max: 87°F)
July 86°F (min: 83°F/max: 88°F)
August 84°F (min: 82°F/max: 86°F)
September 83°F (min: 81°F/max: 87°F)
October 81°F (min: 79°F/max: 84°F)
November 79°F (min: 76°F/max: 81°F)
December 74°F (min: 68°F/max: 78°F)

Water temperature variation in Hainan throughout the year

Change units