With a population of around 2,500, Castleisland sits in Munster, Ireland. The city operates in the GMT/IST time zone.
Recent weather here gives a sense of typical conditions: in 2025, Castleisland recorded a mean annual temperature of 51°F, ranging from 18°F lows in January to 80°F highs in July, with about 59 inches of precipitation across the year.
View historical weather for Castleisland · More cities in Munster