Best time to swim in Hiroshima in Japan Sea temperature by month

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

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

Do you feel like swimming in Hiroshima in Japan? 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 58°F (min: 55°F/max: 62°F)
February 55°F (min: 53°F/max: 57°F)
March 55°F (min: 52°F/max: 58°F)
April 58°F (min: 55°F/max: 62°F)
May 63°F (min: 58°F/max: 69°F)
June 70°F (min: 64°F/max: 76°F)
July 77°F (min: 72°F/max: 81°F)
August 81°F (min: 78°F/max: 83°F)
September 79°F (min: 75°F/max: 82°F)
October 74°F (min: 72°F/max: 76°F)
November 69°F (min: 64°F/max: 74°F)
December 63°F (min: 57°F/max: 69°F)

Water temperature variation in Hiroshima throughout the year

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