Portarlington, in Leinster, Ireland, is home to roughly 7,800 people in the GMT/IST time zone at 53.2°N latitude.
In 2025, Portarlington averaged an annual temperature of 51°F, with hottest temperatures reaching 84°F in July and lowest around 22°F in January. The city received approximately 42 inches of precipitation during the year.
View historical weather for Portarlington · More cities in Leinster