Best time to swim in Groix in Brittany Sea temperature by month

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

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

Do you feel like swimming in Groix in Brittany? 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 51°F (min: 49°F/max: 54°F)
February 50°F (min: 49°F/max: 52°F)
March 50°F (min: 49°F/max: 52°F)
April 54°F (min: 50°F/max: 58°F)
May 58°F (min: 54°F/max: 62°F)
June 61°F (min: 57°F/max: 66°F)
July 63°F (min: 59°F/max: 68°F)
August 65°F (min: 62°F/max: 67°F)
September 64°F (min: 62°F/max: 67°F)
October 62°F (min: 59°F/max: 65°F)
November 60°F (min: 56°F/max: 62°F)
December 55°F (min: 52°F/max: 59°F)

Water temperature variation in Groix throughout the year

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