Average monthly water temperature in Dalkey, Ireland
On this page you find the mean water temperature over the year in Dalkey (Dublin County), Ireland. Dive into the water temperature trends, highlighting the best times for swimming and other activities.
In Dalkey, cooler water temperatures are a year-round feature. The warmest month is August, averaging 15°C (59°F).
The coldest month, March, sees averages of 8°C (46°F). This does not make it a great month for visitors who enjoy swimming.
Dalkey Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Dalkey - and find the best time to visit.
Dalkey 3-Day Forecast
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Dalkey climate overview or explore weather in Ireland.
Popular this month
Where to go in September - average daytime high across popular destinations.
Westport
17°C (63°F) Doolin17°C (63°F) Kilkenny
18°C (64°F) Cork18°C (64°F) Kenmare18°C (64°F) Killarney17°C (63°F) Galway18°C (64°F) Dublin18°C (64°F) 
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