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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 perfect, 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.

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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 TemperatureMin Temperature 13°C (55°F)  
Max TemperatureMax Temperature 25°C (77°F)  
Chance of RainChance of Rain 33%  
PrecipitationPrecipitation 83 mm (3.3 in)  
Rainy daysRainy days 10 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 →

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Dublin in September

Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes.

What To Do in Dublin in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling
7/10
Walking
7/10
Camping
8/10
Outdoor sports
7/10

Select a Month

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.

More climate data for Dublin