Mount Merrion, in Leinster, Ireland, is home to roughly 7,800 people in the GMT/IST time zone at 53.3°N latitude.
Recent weather here gives a sense of typical conditions: in 2025, Mount Merrion recorded a mean annual temperature of 52°F, ranging from 29°F lows in January to 80°F highs in July, with about 49 inches of precipitation across the year.
View historical weather for Mount Merrion · More cities in Leinster