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Ireland weather in September 2021
Get the latest coronavirus (COVID-19) updates for Ireland with current travel advice, statistics and online resources.
Below are average maximum temperatures at popular destinations in Ireland in September. Select a destination to see more weather parameters.
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The September weather guide for Ireland 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.
Ireland holiday rentals
Find holiday rentals in Ireland including holiday homes, self-catering accommodation, B&Bs, shared space, home swaps and short-term lets.
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Ireland camping & hostels
Looking for camping holidays in Ireland? Browse hostels and campsites for camping, glamping, yurts, cabins, tree houses, youth hostels and caravan parks.
Ireland car hire
Need to hire a car for Ireland? Check out the car hire companies and brokers offering car rentals for 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 sunrise & sunset times for September 2021
Browse the sunrise & sunset times for Ireland in September 2021. Select a month to view Ireland sunrise & sunset times for the next twelve months. The Ireland sunrise & sunset times shown below are for Dublin.
|Date||Sunrise times||Sunset times|
|Wednesday, 1st September 2021||06:35||20:14|
|Wednesday, 15th September 2021||06:59||19:40|
|Thursday, 30th September 2021||07:25||19:04|
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Metric (°C / mm) | Imperial (°F / inches)
Discover more about Ireland
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