Killaloe weather in September 2025

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

  • 17°C maximum daytime temperature in September in Killaloe17
    17°C max day temperature
  • 4 hours of sunshine per day
  • 18 days with some rainfall in September in Killaloe18
    18 days with some rainfall
  • 9°C minimum night-time temperature in September in Killaloe9
    9°C min night temperature
  • 13 hours of daylight per day in September in Killaloe13
    13 hours of daylight per day
  • No heat & humidity in September in Killaloe0
    No heat & humidity
  • 100 mm monthly rainfall in September in Killaloe100
    100 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Killaloe4
    4 (Moderate) UV index

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The September weather guide for Ireland (Killaloe) 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 Killaloe in September?

Daytime temperatures usually reach 17°C in Killaloe in September, falling to 9°C at night.

How sunny is it in Killaloe in September?

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

Does it rain in Killaloe in September?

There are usually 18 days with some rain in Killaloe in September and the average monthly rainfall is 100mm.

Killaloe September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:44 19:22
Monday, 15th September 2025 06:08 18:49
Tuesday, 30th September 2025 06:34 18:13

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