Ireland weather in September 2019

  • 17°C maximum daytime temperature in September in Ireland (Dublin)17
    17°C 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
  • 10°C minimum night-time temperature in September in Ireland (Dublin)10
    10°C 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
  • 64 mm monthly rainfall in September in Ireland (Dublin)64
    64 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Ireland (Dublin)4
    4 (Moderate) UV index
  • 14°C sea temperature in September in Ireland (Dublin)14
    14°C sea temperature

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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 2019/2020. The September weather averages shown above are for Dublin.

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More about Ireland

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The September weather guide for Ireland, represented by 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.

Metric (°C / mm)  |  Imperial (°F / inches)

Guide to Ireland weather in September

The average maximum daytime temperature in Ireland in September is a comfortable 17°C (63°F). The average night-time temperature is usually a cool 10°C (50°F). There are usually 4 hours of bright sunshine each day, which represents 33% of the 13 hours of daylight.

Expect 64mm (2.5 inches) of rainfall across the whole of September with 15 days with some rain falling. Maximum UV levels will be moderate (4 UV index) at midday when the skies are clear.

The average sea temperature in and around Ireland in September is 14°C (57°F).

The weather in Ireland in September is represented by Dublin.

Ireland sunrise & sunset times for September 2019

Browse the sunrise & sunset times for Ireland in September 2019. 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
Sunday, 1st September 2019 06:34 20:15
Monday, 2nd September 2019 06:36 20:13
Tuesday, 3rd September 2019 06:37 20:11
Wednesday, 4th September 2019 06:39 20:08
Thursday, 5th September 2019 06:41 20:06
Friday, 6th September 2019 06:42 20:03
Saturday, 7th September 2019 06:44 20:01
Sunday, 8th September 2019 06:46 19:59
Monday, 9th September 2019 06:48 19:56
Tuesday, 10th September 2019 06:49 19:54
Wednesday, 11th September 2019 06:51 19:51
Thursday, 12th September 2019 06:53 19:49
Friday, 13th September 2019 06:55 19:46
Saturday, 14th September 2019 06:56 19:44
Sunday, 15th September 2019 06:58 19:42
Monday, 16th September 2019 07:00 19:39
Tuesday, 17th September 2019 07:01 19:37
Wednesday, 18th September 2019 07:03 19:34
Thursday, 19th September 2019 07:05 19:32
Friday, 20th September 2019 07:07 19:29
Saturday, 21st September 2019 07:08 19:27
Sunday, 22nd September 2019 07:10 19:24
Monday, 23rd September 2019 07:12 19:22
Tuesday, 24th September 2019 07:14 19:20
Wednesday, 25th September 2019 07:15 19:17
Thursday, 26th September 2019 07:17 19:15
Friday, 27th September 2019 07:19 19:12
Saturday, 28th September 2019 07:21 19:10
Sunday, 29th September 2019 07:22 19:07
Monday, 30th September 2019 07:24 19:05
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