Best time to swim in Hilo in Hawaii Sea temperature by month

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

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

Do you feel like swimming in Hilo in Hawaii? 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 77°F (min: 75°F/max: 79°F)
February 77°F (min: 75°F/max: 78°F)
March 76°F (min: 75°F/max: 77°F)
April 77°F (min: 76°F/max: 78°F)
May 77°F (min: 76°F/max: 79°F)
June 78°F (min: 77°F/max: 80°F)
July 79°F (min: 77°F/max: 81°F)
August 80°F (min: 78°F/max: 81°F)
September 79°F (min: 78°F/max: 81°F)
October 80°F (min: 79°F/max: 81°F)
November 78°F (min: 77°F/max: 80°F)
December 77°F (min: 75°F/max: 79°F)

Water temperature variation in Hilo throughout the year

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