Best time to swim in Washington D. C. in the United States (USA) Sea temperature by month

Do you want to swim in the sea in Washington D. C. in the United States (USA)? But when is the best time to go to be sure to have pleasant water for swimming in Washington D. C. 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 Washington D. C., based on the average temperatures recorded in previous years.

Best time to swim in Washington D. C.: the water temperature by month

Do you feel like swimming in Washington D. C. in the United States (USA)? 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 48°F (min: 45°F/max: 52°F)
February 46°F (min: 43°F/max: 49°F)
March 47°F (min: 44°F/max: 50°F)
April 53°F (min: 48°F/max: 57°F)
May 58°F (min: 52°F/max: 65°F)
June 70°F (min: 64°F/max: 76°F)
July 77°F (min: 73°F/max: 80°F)
August 79°F (min: 76°F/max: 81°F)
September 75°F (min: 72°F/max: 77°F)
October 67°F (min: 62°F/max: 74°F)
November 59°F (min: 55°F/max: 63°F)
December 53°F (min: 48°F/max: 56°F)

Water temperature variation in Washington D. C. throughout the year

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