About Tallaght, Leinster's Climate & Weather History

With a population of around 80,300, Tallaght sits in Leinster, Ireland. The city operates in the GMT/IST time zone.

In 2025, Tallaght recorded an average annual temperature of 51°F. The hottest temperatures reached 86°F in July; the coolest were 26°F in January. Total precipitation for the year was 46 inches, with the wettest month being April. Snowfall for the year totaled approximately 2 inches.