Best time to swim in Eureka in California Sea temperature by month

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

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

Do you feel like swimming in Eureka in California? 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 52°F (min: 50°F/max: 55°F)
February 52°F (min: 49°F/max: 55°F)
March 52°F (min: 49°F/max: 55°F)
April 52°F (min: 48°F/max: 56°F)
May 53°F (min: 48°F/max: 58°F)
June 52°F (min: 47°F/max: 58°F)
July 53°F (min: 48°F/max: 57°F)
August 53°F (min: 49°F/max: 56°F)
September 53°F (min: 49°F/max: 57°F)
October 53°F (min: 49°F/max: 58°F)
November 53°F (min: 49°F/max: 57°F)
December 53°F (min: 49°F/max: 57°F)

Water temperature variation in Eureka throughout the year

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