Ireland weather in September 2024

Expect 63°F 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.

  • 63°F maximum daytime temperature in September in Ireland (Dublin)63
    63°F max day temperature
  • 4 hours of sunshine per day
  • 15 days with some rainfall in September in Ireland (Dublin)15
    15 days with some rainfall
  • 50°F minimum night-time temperature in September in Ireland (Dublin)50
    50°F min night temperature
  • 13 hours of daylight per day in September in Ireland (Dublin)13
    13 hours of daylight per day
  • No heat & humidity in September in Ireland (Dublin)0
    No heat & humidity
  • 2.5 inches monthly rainfall in September in Ireland (Dublin)2.5
    2.5 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Ireland (Dublin)4
    4 (Moderate) UV index
  • 57°F sea temperature in September in Ireland (Dublin)57
    57°F sea temperature

More about Ireland

Ireland by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Ireland

  • Save up to £700 per couple on escorted tours in 2024
  • £400 off Europe, £600 off USA & Canada & £700 off long haul
  • Travel before 31st December 2024 (inclusive)

Expires at 23:59 on Thursday 4th Apr 2024 · View all Cosmos offers

CosmosTour deal finder

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

Metric (°C)  |  Imperial (°F)

Back to top

More about Ireland

How warm is it in Ireland in September?

Daytime temperatures usually reach 63°F in Dublin, Ireland in September, falling to 50°F 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 57°F.

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 2.5 inches.

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

Related posts

Popular travel offers

Explore holidays in the sun for less

Top ^