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

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

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

Do you feel like swimming in Osaka 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 59°F (min: 56°F/max: 63°F)
February 58°F (min: 55°F/max: 60°F)
March 58°F (min: 56°F/max: 60°F)
April 61°F (min: 58°F/max: 63°F)
May 66°F (min: 60°F/max: 71°F)
June 73°F (min: 69°F/max: 78°F)
July 79°F (min: 76°F/max: 83°F)
August 82°F (min: 81°F/max: 84°F)
September 80°F (min: 76°F/max: 83°F)
October 74°F (min: 72°F/max: 77°F)
November 70°F (min: 67°F/max: 73°F)
December 64°F (min: 60°F/max: 68°F)

Water temperature variation in Osaka throughout the year

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