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Ireland weather in September 2024
Expect 17°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Ireland in September. Check more long-term weather averages for Ireland in September before you book your next holiday to Ireland in 2024/2025.
- 1717°C max day temperature
- 1515 days with some rainfall
- 1010°C min night temperature
- 1313 hours of daylight per day
- 0No heat & humidity
- 6464 mm of monthly rainfall
- 44 (Moderate) UV index
- 1414°C sea temperature
More about Ireland
- Climate guide
- 5-day weather forecast
- Best time to visit
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Ireland by month
Recommended for Ireland
The September weather guide for Ireland (Dublin) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Top Ireland destinations
Below are average maximum temperatures at popular destinations in Ireland in September. Select a destination to see more weather parameters.
All Ireland destinations
- Achill Island
- Bangor Erris
- Dunmore East
- Gougane Barra
- Inishbofin Island
- Kilronan, Aran Islands
- Valentia Island
Metric (°C / mm) | Imperial (°F / inches)
More about Ireland
How warm is it in Ireland in September?
Daytime temperatures usually reach 17°C in Dublin, Ireland in September, falling to 10°C at night.
How sunny is it in Ireland in September?
There are normally 4 hours of bright sunshine each day in Dublin, Ireland in September - that's 33% of daylight hours.
How warm is the sea around Ireland in September?
The average sea temperature around Dublin, Ireland in September is 14°C.
Does it rain in Ireland in September?
There are usually 15 days with some rain in Dublin, Ireland in September and the average monthly rainfall is 64mm.
Ireland September sunrise & sunset times
Browse the sunrise and sunset times for Ireland in September 2024. Select a month to view Ireland sunrise and sunset times for the next 12 months. The Ireland sunrise and sunset times shown below are for Dublin.
|Date||Sunrise times||Sunset times|
|Sunday, 1st September 2024||06:35||20:13|
|Sunday, 15th September 2024||06:59||19:40|
|Monday, 30th September 2024||07:26||19:03|
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