About Sandymount, Leinster's Climate & Weather History

Sandymount is a city of approximately 9,000 people in Leinster, Ireland. Located in the GMT/IST time zone at 53.3°N latitude.

In 2025, Sandymount recorded an average annual temperature of 53°F. The hottest temperatures reached 80°F in July; the coolest were 27°F in January. Total precipitation for the year was 46 inches, with the wettest month being September. Snowfall for the year totaled approximately 1 inches.