Limerick weather in September 2025

Expect 17°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Limerick in September. Check more long-term weather averages for Limerick in September before you book your next holiday to Ireland in 2025/2026.

  • 17°C maximum daytime temperature in September in Limerick17
    17°C max day temperature
  • 4 hours of sunshine per day
  • 18 days with some rainfall in September in Limerick18
    18 days with some rainfall
  • 10°C minimum night-time temperature in September in Limerick10
    10°C min night temperature
  • 13 hours of daylight per day in September in Limerick13
    13 hours of daylight per day
  • No heat & humidity in September in Limerick0
    No heat & humidity
  • 90 mm monthly rainfall in September in Limerick90
    90 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Limerick4
    4 (Moderate) UV index

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The September weather guide for Ireland (Limerick) 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)

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More about Ireland

How warm is it in Limerick in September?

Daytime temperatures usually reach 17°C in Limerick in September, falling to 10°C at night.

How sunny is it in Limerick in September?

There are normally 4 hours of bright sunshine each day in Limerick in September - that's 29% of daylight hours.

Does it rain in Limerick in September?

There are usually 18 days with some rain in Limerick in September and the average monthly rainfall is 90mm.

Limerick September sunrise & sunset times

Browse the sunrise and sunset times for Limerick in September 2025. Select a month to view Limerick sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:45 19:22
Monday, 15th September 2025 06:09 18:49
Tuesday, 30th September 2025 06:34 18:14

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