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Dublin weather in September 2021
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- 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
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The September weather guide for Dublin, 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.
Dublin holiday rentals
Find holiday rentals in Dublin, County Dublin, Ireland including holiday homes, self-catering accommodation, B&Bs, shared space, home swaps and short-term lets.
Dublin camping & hostels
Looking for camping holidays in Dublin, County Dublin, Ireland? Browse hostels and campsites for camping, glamping, yurts, cabins, tree houses, youth hostels and caravan parks.
Dublin car hire
Need to hire a car for Dublin, County Dublin, Ireland? Check out the car hire companies and brokers offering car rentals for Dublin, County Dublin, Ireland.
How warm is it in Dublin in September?
Daytime temperatures usually reach 17°C in Dublin in September, falling to 10°C at night.
How sunny is it in Dublin in September?
There are normally 4 hours of bright sunshine each day in Dublin in September - that's 33% of daylight hours.
How warm is the sea around Dublin in September?
The average sea temperature around Dublin in September is 14°C.
Does it rain in Dublin in September?
There are usually 15 days with some rain in Dublin in September and the average monthly rainfall is 64mm.
Dublin sunrise & sunset times for September 2021
Browse the sunrise & sunset times for Dublin in September 2021. Select a month to view Dublin sunrise & sunset times for the next twelve months.
|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)
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Where is hot in Ireland in September for 2021/2022?
Below are average maximum temperatures at popular destinations in Ireland in September. Select a destination to see more weather parameters.
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