Dublin has a temperate maritime climate with mild, damp winters and cool summers. At Dublin Airport, the 1991-2020 reference averages range from a daily high of 46°F (8°C) in Jan to 67°F (19°C) in Jul. Monthly rainfall averages sum to 30.4 inches (773 mm) per year.
Spring is cool and comparatively dry as the year's most settled stretch begins. Summers are famously mild; highs rarely leave the 60s°F, and anything near 77°F counts as a hot day. Autumn turns windier and wetter as Atlantic storm systems return, with November the wettest month. Winter brings frequent blustery rain and the occasional named storm, but snow is rare and seldom lasts.