Weather in Dublin in September
The weather is near-perfect with ideal temperatures and minimal rain. Recommended month to visit.
Climate Overview
September is an excellent time to visit Dublin. Dublin has a Cool climate with average yearly highs of 17°C, lows of 11°C, and approximately 9 rainy days per month.
17°C
11°C
9days
12.8h
Is September a good time to visit Dublin?
The weather is near-perfect with ideal temperatures and minimal rain.
Daylight
6:57 AM
7:46 PM
Weather by Month
| Month | High | Low | Rainy days | Condition |
|---|---|---|---|---|
| January | 9°C | 4°C | 11 | Good |
| February | 9°C | 4°C | 21 | Wet |
| March | 10°C | 3°C | 10 | Good |
| April | 14°C | 6°C | 8 | Good |
| May | 17°C | 9°C | 6 | Excellent (best) |
| June | 18°C | 11°C | 21 | Excellent (best) |
| July | 18°C | 12°C | 20 | Excellent (best) |
| August | 19°C | 13°C | 18 | Excellent (best) |
| September | 17°C | 11°C | 9 | Excellent (best) |
| October | 13°C | 8°C | 18 | Wet |
| November | 11°C | 6°C | 15 | Wet |
| December | 8°C | 3°C | 18 | Wet |
Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025
What to Pack for September
Layers, a light jacket, comfortable walking shoes, and an umbrella.
Planning a trip to Dublin?
Common Questions
Is September a good time to visit Dublin? +
September is typically Excellent for visiting Dublin, with average highs of 17°C and around 9 rainy days.
What should I pack for Dublin in September? +
With highs of 17°C and lows of 11°C in {month}, we recommend: Layers, a light jacket, comfortable walking shoes, and an umbrella.
Does it rain a lot in Dublin in September? +
Dublin typically sees around 9 rainy days in September.
How many hours of daylight are there in Dublin in September? +
In September, Dublin gets approximately 12.8 hours of daylight per day.
Is September peak season in Dublin? +
Yes, September is peak season in Dublin. Expect higher prices and more crowds, but also the best weather.
What is the best month to visit Dublin? +
The best months to visit Dublin are May, June, July, August, September, when the weather is optimal for sightseeing.
More Dublin Guides
Best Time to Visit
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Things to Do
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Itineraries
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Overview
Complete travel guide for Dublin: top things to do, itineraries, and typical costs.