About Blanchardstown, Leinster

Blanchardstown is a city of approximately 16,500 people in Leinster, Ireland. Located in the GMT/IST time zone at 53.4°N latitude.

In 2025, Blanchardstown averaged an annual temperature of 52°F, with hottest temperatures reaching 85°F in July and lowest around 24°F in January. The city received approximately 41 inches of precipitation during the year.