Best time to swim in Dalkey Island in Ireland Sea temperature by month

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

Best time to swim in Dalkey Island: the water temperature by month

Do you feel like swimming in Dalkey Island 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 50°F (min: 47°F/max: 52°F)
February 49°F (min: 46°F/max: 50°F)
March 48°F (min: 46°F/max: 49°F)
April 49°F (min: 47°F/max: 50°F)
May 51°F (min: 49°F/max: 53°F)
June 54°F (min: 52°F/max: 58°F)
July 58°F (min: 55°F/max: 60°F)
August 59°F (min: 58°F/max: 61°F)
September 59°F (min: 58°F/max: 60°F)
October 58°F (min: 56°F/max: 59°F)
November 56°F (min: 55°F/max: 58°F)
December 53°F (min: 50°F/max: 55°F)

Water temperature variation in Dalkey Island throughout the year

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