Killarney weather in January 2026

Expect daytime maximum temperatures of 8°C in Killarney, Ireland in January based on long-term weather averages. There are 2 hours of sunshine per day on average with 23 days with some rainfall and typically 160 mm of rainfall in the month.

  • 8°C maximum daytime temperature in January in Killarney8
    8°C max day temperature
  • 2 hours of sunshine per day
  • 23 days with some rainfall in January in Killarney23
    23 days with some rainfall
  • 3°C minimum night-time temperature in January in Killarney3
    3°C min night temperature
  • 8 hours of daylight per day in January in Killarney8
    8 hours of daylight per day
  • No heat & humidity in January in Killarney0
    No heat & humidity
  • 160 mm monthly rainfall in January in Killarney160
    160 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Killarney1
    1 (Low) UV index

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The January weather guide for Ireland (Killarney) 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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How warm is it in Killarney in January?

Daytime temperatures usually reach 8°C in Killarney in January, falling to 3°C at night.

How sunny is it in Killarney in January?

There are normally 2 hours of bright sunshine each day in Killarney in January - that's 19% of daylight hours.

Does it rain in Killarney in January?

There are usually 23 days with some rain in Killarney in January and the average monthly rainfall is 160mm.

Killarney January sunrise & sunset times

Browse the sunrise and sunset times for Killarney in January 2026. Select a month to view Killarney sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 08:46 16:37
Friday, 16th January 2026 08:39 16:58
Saturday, 31st January 2026 08:20 17:24

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