Best time to swim in Porto in Portugal Sea temperature by month

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

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

Do you feel like swimming in Porto in Portugal? 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: 56°F/max: 60°F)
February 57°F (min: 55°F/max: 59°F)
March 58°F (min: 54°F/max: 61°F)
April 60°F (min: 57°F/max: 64°F)
May 62°F (min: 58°F/max: 66°F)
June 63°F (min: 61°F/max: 67°F)
July 64°F (min: 59°F/max: 68°F)
August 64°F (min: 60°F/max: 68°F)
September 65°F (min: 62°F/max: 68°F)
October 64°F (min: 60°F/max: 69°F)
November 63°F (min: 61°F/max: 66°F)
December 61°F (min: 58°F/max: 63°F)

Water temperature variation in Porto throughout the year

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