Dublin Weather in September
September in Dublin brings very high temperatures around 31°C (88°F) during the day, dropping to 18°C (64°F) at night, with quite a bit of rainfall expected, averaging around 77 mm (3 in) for the month.
Rainfall in Dublin in September
The climate data from previous years indicates about 9 days of rain, averaging 77 mm (3 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Dublin in September
In September, Dublin sees very high temperatures, with highs of 31°C (88°F). Nights drop to around 18°C (64°F). Sunshine and humidity can make it feel even warmer than the raw temperature suggests. Nights cool down to 18°C (64°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.For Dublin itself, March, April, May, October and November generally stand out with 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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Dublin's climate page.
Dublin Temperature in September
Min Temperature
18°C (64°F)
Max Temperature
31°C (88°F)
Chance of Rain
30%
Precipitation
77 mm (3 in)
Rainy days
9 days
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Dublin in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket.What To Do in Dublin in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Dublin's climate page.
See the full Dublin climate overview or explore weather in the United States of America.
