ClimateAverages

Tallaght Climate

Leinster, Ireland · population 64,282 · 91 weather stations within 200 km · records 1750 to 2025

Average annual daytime high
12.7°C
Warmest month · July
18.9°C
Typical daytime high
Coldest month · January
1.6°C
Typical overnight low

Tallaght has an average annual daytime high of 12.7°C, based on the 1951 to 1980 baseline. Its warmest month is July, when highs typically reach 18.9°C, and its coldest is January, with overnight lows near 1.6°C.

Month by month averages

MonthAvg highAvg low
January6.6°C1.6°CColdest
February7.2°C1.7°C
March9.4°C2.8°C
April11.8°C4.0°C
May14.8°C6.7°C
June17.7°C9.5°C
July18.9°C11.2°CWarmest
August18.7°C11.0°C
September16.6°C9.4°C
October13.4°C7.2°C
November9.4°C3.8°C
December7.5°C2.5°C

Temperature range across the year

-0°5°10°16°21°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2022
+1.8°C vs. 1951–1980
Coldest year on record
1783
-1.8°C vs. 1951–1980

These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.

Is Tallaght getting hotter?

Since 1900, Tallaght's average temperature has risen by +1.9°C. Compared to the earliest station records that begin in 1750, warming totals +2.5°C.

8.8°9.4°10.0°10.6°11.2°1951–1980 baseline190019251950197520002025

20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.

Best time to visit
June to September

Daytime highs sit within a comfortable 15°C to 26°C range.

FAQ

What is the average temperature in Tallaght?

Tallaght's average annual daytime high is 12.7°C, based on the 1951 to 1980 baseline period. The warmest month is July, with highs averaging 18.9°C, and the coldest is January, with lows averaging 1.6°C.

What is the warmest month in Tallaght?

July is the warmest month in Tallaght, with typical daytime highs of 18.9°C.

What is the hottest year on record for Tallaght?

2022 is the hottest year on record for Tallaght, running +1.8°C above the 1951 to 1980 baseline.

Is Tallaght getting hotter?

Yes. Since 1900, Tallaght has warmed by roughly +1.9°C.

When is the best time to visit Tallaght?

June to September typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Nearby cities

Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.