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

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

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

Do you feel like swimming in Asahi in Japan? Discover the average sea temperature for each month of the year (based on previous years' records) and our opinion on swimming in the table below.

Month Sea temperature
January 62°F (min: 56°F/max: 67°F)
February 59°F (min: 55°F/max: 63°F)
March 59°F (min: 54°F/max: 65°F)
April 63°F (min: 59°F/max: 67°F)
May 66°F (min: 62°F/max: 70°F)
June 70°F (min: 67°F/max: 74°F)
July 75°F (min: 71°F/max: 79°F)
August 77°F (min: 73°F/max: 83°F)
September 77°F (min: 73°F/max: 82°F)
October 71°F (min: 69°F/max: 73°F)
November 69°F (min: 65°F/max: 72°F)
December 64°F (min: 59°F/max: 68°F)

Water temperature variation in Asahi throughout the year

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