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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.
- 17°C max day temperature
17 - 4 hours of sunshine per day
- 15 days with some rainfall
15 - 10°C min night temperature
10 - 13 hours of daylight per day
13 - No heat & humidity
0 - 64 mm of monthly rainfall
64 - 4 (Moderate) UV index
4 - 14°C sea temperature
14
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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
- Adare
- Ardara
- Arklow
- Athlone
- Ballina
- Ballinasloe
- Ballybofey
- Ballyliffin
- Banagher
- Bangor Erris
- Bantry
- Belmullet
- Boyle
- Buncrana
- Bundoran
- Cahir
- Carlow
- Carrick-On-Shannon
- Cashel
- Castlebar
- Castletownbere
- Catherdaniel
- Cavan
- Clifden
- Clonakilty
- Clonmel
- Cobh
- Cong
- Cork
- Dingle
- Donegal
- Doolin
- Downings
- Drogheda
- Dublin
- Dundalk
- Dungarvan
- Dunmore East
- Ennis
- Enniscorthy
- Enniskerry
- Fermoy
- Galway
- Glenbeigh
- Glendalough
- Glengariff
- Gougane Barra
- Gweedore
- Howth
- Inishbofin Island
- Kells
- Kenmare
- Kilkee
- Kilkenny
- Killaloe
- Killarney
- Killybegs
- Kilronan, Aran Islands
- Kinnitty
- Kinsale
- Lahinch
- Letterkenny
- Limerick
- Longford
- Mallow
- Mullingar
- Naas
- Navan
- Oughterard
- Portlaoise
- Redcastle
- Roscommon
- Roscrea
- Rosslare
- Schull
- Skibbereen
- Sligo
- Sneem
- Tralee
- Trim
- Tullamore
- Valentia Island
- Waterford
- Westport
- Wexford
- Wicklow
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.
JanFebMarAprMayJunJulAugSepOctNovDec
| 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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