About Dundrum, Leinster's Climate & Weather History

Dundrum, in Leinster, Ireland, is home to roughly 12,200 people in the GMT/IST time zone at 53.3°N latitude.

In 2025, Dundrum recorded an average annual temperature of 52°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.