Rathgar Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Rathgar.
Climate overview of Rathgar
Temperatures in Rathgar, Dublin County, Ireland, shift moderately through the seasons. The warmest month is July at 20°C (68°F), and the coolest is February at 9°C (48°F).
Rathgar sees a moderate amount of rainfall, totalling around 923 mm (36 in) per year. May is the sunniest month, averaging 6.3 hours of sunshine per day.
Rathgar Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Rathgar — and find the best time to visit.
Monthly Temperature in Rathgar
In Rathgar, seasonal changes bring about a moderate variation in temperatures. Average maximum daytime temperatures range from a pleasant 20°C (68°F) in July, the warmest time of the year, to a chilly 9°C (48°F) during cooler months like February.
At night, you can expect temperatures ranging from 13°C (55°F) in July to around 3°C (37°F) during February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Rathgar
Generally, Rathgar receives mid-range precipitation levels, with 923 mm (36 in) annually. Year-round, Rathgar has a balanced climate with minimal variation in precipitation. The difference between the wettest month, November, with 89 mm (3.5 in), and the driest month, March, with 64 mm (2.5 in), is minimal. For more details, please visit our Rathgar Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Rathgar
Seasonal changes in sunshine hours are quite dramatic in Rathgar. While May receives considerable daily sunshine with up to 6.3 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.7 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Rathgar
The mean water temperature over the year ranges from 8°C (46°F) in March to 15°C (59°F) in August.
Water temperature over the year
Humidity in Rathgar by Month
The relative humidity is high throughout the year in Rathgar.
The city experiences its highest humidity in December, reaching 83%. In April, the humidity drops to its lowest level at 68%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Rathgar
The average wind speed over the year ranges from 4 m/s (8 knots) to 6 m/s (12 knots). It is lower in May, June, July, August and September and higher in January, February, March and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Rathgar
Frequently asked questions about the climate in Rathgar
What is the best time to visit Rathgar?
July typically offers the most optimal weather in Rathgar. In contrast, January, February and December tend to have less optimal conditions.
What temperatures can I expect in Rathgar?
Daytime highs range from 9°C (48°F) in February to 20°C (68°F) in July. Nighttime lows range from 3°C (37°F) to 13°C (55°F).
How much rain does Rathgar get?
Annual rainfall is around 923 mm (36 in). November is the wettest month with 89 mm (3.5 in), while March is the driest with 64 mm (2.5 in).
How sunny is Rathgar?
Rathgar receives around 1,432 hours of sunshine per year. May is the sunniest month with 188 hours, while December is the cloudiest with just 51 hours.
Rathgar 3-Day Forecast
Rathgar 3-Day Forecast
Rathgar on the map
Rathgar is highlighted — select any city to see its climate.
Popular this month
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18°C (64°F) Westport17°C (63°F) Kenmare18°C (64°F) Cork17°C (63°F) Killarney18°C (64°F) Doolin17°C (63°F) 
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