Best time to swim in Castletownbere in Ireland Sea temperature by month

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

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

Do you feel like swimming in Castletownbere in Ireland? 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: 48°F/max: 53°F)
February 50°F (min: 49°F/max: 52°F)
March 50°F (min: 49°F/max: 52°F)
April 52°F (min: 49°F/max: 54°F)
May 54°F (min: 52°F/max: 56°F)
June 57°F (min: 52°F/max: 61°F)
July 60°F (min: 56°F/max: 65°F)
August 62°F (min: 59°F/max: 65°F)
September 61°F (min: 58°F/max: 64°F)
October 58°F (min: 55°F/max: 61°F)
November 55°F (min: 53°F/max: 57°F)
December 53°F (min: 50°F/max: 54°F)

Water temperature variation in Castletownbere throughout the year

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