Dublin Weather in September

September in Dublin typically sees daytime highs of 25°C (77°F) and nighttime lows of 13°C (55°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Dublin in September

Historically, approximately 10 days this month are expected to have rain, averaging 83 mm (3.3 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Dublin in September

Dublin in September is worth a visit. The temperature is excellent, with 25°C (77°F) during the day and 13°C (55°F) at night. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 13°C (55°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

If your ideal day consists of dry skies and pleasant temperatures, May, June, August and September typically offer the best circumstances for Dublin.