Galway weather in September 2019

  • 17°C maximum daytime temperature in September in Galway17
    17°C max day temperature
  • 3 hours of sunshine per day
  • 20 days with some rainfall in September in Galway20
    20 days with some rainfall
  • 9°C minimum night-time temperature in September in Galway9
    9°C min night temperature
  • 13 hours of daylight per day in September in Galway13
    13 hours of daylight per day
  • No heat & humidity in September in Galway0
    No heat & humidity
  • 104 mm monthly rainfall in September in Galway104
    104 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Galway4
    4 (Moderate) UV index
  • 15°C sea temperature in September in Galway15
    15°C sea temperature

Going to Galway? Find the best month to visit Galway based on the weather.

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Expect 17°C daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Galway in September. Check more long-term weather averages for Galway in September before you book your next holiday to Ireland in 2019/2020.

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More about Galway

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The September weather guide for Galway, 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.

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

Guide to Galway weather in September

The average maximum daytime temperature in Galway in September is a comfortable 17°C (63°F). The average night-time temperature is usually a cool 9°C (48°F). There are usually 3 hours of bright sunshine each day, which represents 26% of the 13 hours of daylight.

Expect 104mm (4.1 inches) of rainfall across the whole of September with 20 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 Galway in September is 15°C (59°F).

Galway sunrise & sunset times for September 2019

Browse the sunrise & sunset times for Galway in September 2019. Select a month to view Galway sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2019 06:45 20:26
Monday, 2nd September 2019 06:47 20:24
Tuesday, 3rd September 2019 06:49 20:22
Wednesday, 4th September 2019 06:50 20:19
Thursday, 5th September 2019 06:52 20:17
Friday, 6th September 2019 06:54 20:14
Saturday, 7th September 2019 06:56 20:12
Sunday, 8th September 2019 06:57 20:10
Monday, 9th September 2019 06:59 20:07
Tuesday, 10th September 2019 07:01 20:05
Wednesday, 11th September 2019 07:02 20:02
Thursday, 12th September 2019 07:04 20:00
Friday, 13th September 2019 07:06 19:58
Saturday, 14th September 2019 07:08 19:55
Sunday, 15th September 2019 07:09 19:53
Monday, 16th September 2019 07:11 19:50
Tuesday, 17th September 2019 07:13 19:48
Wednesday, 18th September 2019 07:14 19:45
Thursday, 19th September 2019 07:16 19:43
Friday, 20th September 2019 07:18 19:41
Saturday, 21st September 2019 07:20 19:38
Sunday, 22nd September 2019 07:21 19:36
Monday, 23rd September 2019 07:23 19:33
Tuesday, 24th September 2019 07:25 19:31
Wednesday, 25th September 2019 07:27 19:28
Thursday, 26th September 2019 07:28 19:26
Friday, 27th September 2019 07:30 19:24
Saturday, 28th September 2019 07:32 19:21
Sunday, 29th September 2019 07:34 19:19
Monday, 30th September 2019 07:35 19:16
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