Weather in Dublin in September 2018

Expect 17°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Dublin in September. Check more long-term weather averages for Dublin in September before you book your next holiday to Ireland in 2018.

Key weather averages for Dublin in September

  • 17°C maximum daytime temperature in September in Dublin17
    17°C max day temperature
  • 4 hours of sunshine per day (33% of daylight hours) in September in Dublin4
    4 hours of sunshine per day
  • 15 days with some rainfall in September in Dublin15
    15 days with some rainfall
  • 10°C minimum night-time temperature in September in Dublin10
    10°C min night temperature
  • 13 hours of daylight per day in September in Dublin13
    13 hours of daylight per day
  • No heat & humidity in September in Dublin0
    No heat & humidity
  • 64 mm monthly rainfall in September in Dublin64
    64 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Dublin4
    4 (Moderate) UV index
  • 14°C sea temperature in September in Dublin14
    14°C sea temperature

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

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

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Expires at 23:59 on Sunday 31st December 2017

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Guide to Dublin weather in September

The average maximum daytime temperature in Dublin 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 Dublin in September is 14°C (57°F).

The weather in Dublin in September is represented by Dublin.

Dublin sunrise & sunset times for September 2018

Browse the sunrise & sunset times for Dublin in September 2018. Select a month to view Dublin sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st September 2018 06:34 20:15
Sunday, 2nd September 2018 06:36 20:12
Monday, 3rd September 2018 06:38 20:10
Tuesday, 4th September 2018 06:39 20:08
Wednesday, 5th September 2018 06:41 20:05
Thursday, 6th September 2018 06:43 20:03
Friday, 7th September 2018 06:45 20:00
Saturday, 8th September 2018 06:46 19:58
Sunday, 9th September 2018 06:48 19:56
Monday, 10th September 2018 06:50 19:53
Tuesday, 11th September 2018 06:52 19:51
Wednesday, 12th September 2018 06:53 19:48
Thursday, 13th September 2018 06:55 19:46
Friday, 14th September 2018 06:57 19:43
Saturday, 15th September 2018 06:58 19:41
Sunday, 16th September 2018 07:00 19:39
Monday, 17th September 2018 07:02 19:36
Tuesday, 18th September 2018 07:04 19:34
Wednesday, 19th September 2018 07:05 19:31
Thursday, 20th September 2018 07:07 19:29
Friday, 21st September 2018 07:09 19:26
Saturday, 22nd September 2018 07:11 19:24
Sunday, 23rd September 2018 07:12 19:21
Monday, 24th September 2018 07:14 19:19
Tuesday, 25th September 2018 07:16 19:17
Wednesday, 26th September 2018 07:18 19:14
Thursday, 27th September 2018 07:19 19:12
Friday, 28th September 2018 07:21 19:09
Saturday, 29th September 2018 07:23 19:07
Sunday, 30th September 2018 07:25 19:04
  • Save 10% on 5, 3 & 2 day passes & 6% on 1 day passes
  • Pre-book online with the exclusive Dublin Pass promo code
  • Discount does not include the travel element
Show discount code ******VEL

Expires at 23:59 on Sunday 31st December 2017

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Check Dublin weather for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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