Dublin Weather in September

With daytime temperatures of 30°C (86°F) and nighttime lows of 13°C (55°F), September in Dublin brings high temperatures during the day. The excellent weather makes it an appealing time to visit.

Rainfall in Dublin in September

Historically, September sees about a single day of rain, with a monthly average of 3.5 mm (0.1 in). If rain does fall, it tends to be very light and barely worth getting out an umbrella for.

Temperature in Dublin in September

September is a good time to be in Dublin. Days are excellent, reaching 30°C (86°F), with nights around 13°C (55°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With lows of 13°C (55°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Dublin in September

Enjoy a sunny month with about 270 hours of sunshine, the clear skies make Dublin even more beautiful.

If you prefer dry days with pleasant temperatures, April, May, June and October typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.