Tallaght Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Tallaght.
Climate overview of Tallaght
Tallaght, Dublin County, Ireland, experiences moderate temperature changes through the seasons. July is the warmest month with daytime highs of 20°C (68°F), while January is the coolest at 9°C (48°F).
The city receives around 922 mm (36 in) of rainfall per year. It experiences pleasant summers and cold winters. November is the wettest month and March the driest. The most sunshine falls in May, with an average of 6.3 hours of daily sunshine.
Tallaght Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Tallaght - and find the best time to visit.
Monthly Temperature in Tallaght
The weather in Tallaght changes moderately throughout the year, offering enough variation to appreciate each season. On average, daytime temperatures range from a pleasant 20°C (68°F) in July to a chilly 9°C (48°F) in January.
Nighttime temperatures range from 12°C (54°F) in July to 3°C (37°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Tallaght
Generally, Tallaght has a moderate amount of precipitation, averaging 922 mm (36 in) of rainfall annually. The wettest period in Tallaght occurs in November, which receives around 87 mm (3.4 in) of precipitation. During the driest month, March, Tallaght experiences moderate rainfall, totaling 64 mm (2.5 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Tallaght 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 Tallaght
In Tallaght, summer days are longer and more sunny, with daily sunshine hours peaking at 6.3 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.7 hours per average 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 Tallaght
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 Tallaght by Month
The relative humidity is high throughout the year in Tallaght.
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 Tallaght
The mean wind speed varies between 4 m/s (8 knots) and 6 m/s (12 knots) throughout the year. It is lowest in May, June, July, August and September and highest during January, February, March and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Tallaght
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July and August
- Warmest weather: July and August
- Most sunshine: May and June
- Seasonal pattern: Pleasant summers and cold winters
Frequently asked questions about the climate in Tallaght
What is the best time to visit Tallaght?
July and August typically offer the most optimal weather in Tallaght. In contrast, January, February and December tend to have less optimal conditions. Tallaght has pleasant summers and cold winters.
What temperatures can I expect in Tallaght?
Daytime highs range from 9°C (48°F) in January to 20°C (68°F) in July. Nighttime lows range from 3°C (37°F) to 12°C (54°F).
How much rain does Tallaght get?
Annual rainfall is around 922 mm (36 in). November is the wettest month with 87 mm (3.4 in), while March is the driest with 64 mm (2.5 in).
How sunny is Tallaght?
Tallaght 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.
Tallaght 3-Day Forecast
Tallaght on the map
Tallaght is highlighted - select any city to see its climate.
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