Average monthly water temperature in Rathgar, Ireland
On this page you find the mean water temperature over the year in Rathgar (Dublin County), Ireland. Get insights into the water temperature fluctuations and discover what they mean for visitors.
Water in Rathgar maintains a consistently cool profile. The warmest month, August, has an average temperature of 15°C (59°F).
The coldest water temperature month is March, averaging 8°C (46°F). These conditions are ideal for enjoying peaceful, less crowded water activities.
Rathgar Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Rathgar - and find the best time to visit.
Rathgar 3-Day Forecast
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Rathgar climate overview or explore weather in Ireland.
Popular in September
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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