Best time to swim in Ireland Sea temperature by month

Do you want to go to the seaside in Ireland? But when should you go to be sure to enjoy good sea water temperature and be able to swim for a long time? Now or another month during the year? On this page, find the sea temperature by month in Ireland.

Swimming in Ireland by month

Discover swimming conditions in detail in Ireland by month below. Click on the links for each month to see details about the sea temperature in the cities of: Dublin, Cork, Galway, Donegal and Rosslare.

Month sea temperature Details
49°F to 51°F Sea temperature
in Ireland in january
48°F to 50°F Sea temperature
in Ireland in february
47°F to 50°F Sea temperature
in Ireland in march
49°F to 52°F Sea temperature
in Ireland in april
51°F to 54°F Sea temperature
in Ireland in may
54°F to 57°F Sea temperature
in Ireland in june
57°F to 61°F Sea temperature
in Ireland in july
59°F to 62°F Sea temperature
in Ireland in august
58°F to 61°F Sea temperature
in Ireland in september
56°F to 58°F Sea temperature
in Ireland in october
54°F to 56°F Sea temperature
in Ireland in november
52°F to 53°F Sea temperature
in Ireland in december

* in at least part of the area.

Where and when should you swim in Ireland?

Dublin

Best time to swim in Dublin

No month is favorable as far as sea temperature for swimming in Dublin.

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Cork

Best time to swim in Cork

No month is favorable as far as sea temperature for swimming in Cork.

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Galway

Best time to swim in Galway

No month is favorable as far as sea temperature for swimming in Galway.

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Donegal

Best time to swim in Donegal

No month is favorable as far as sea temperature for swimming in Donegal.

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Rosslare

Best time to swim in Rosslare

No month is favorable as far as sea temperature for swimming in Rosslare.

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Other cities and places in Ireland:

Water temperatures in Ireland over the entire year

On this chart, we show you the variation of the average sea water temperature in Ireland for the cities of: Dublin, Cork, Galway, Donegal and Rosslare.

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