Letterkenny weather in January 2025

Expect 45°F daytime maximum temperatures in the shade with on average 1 hours of sunshine per day in Letterkenny in January. Check more long-term weather averages for Letterkenny in January before you book your next holiday to Ireland in 2025/2026.

  • 45°F maximum daytime temperature in January in Letterkenny45
    45°F max day temperature
  • 1 hour of sunshine per day
  • 24 days with some rainfall in January in Letterkenny24
    24 days with some rainfall
  • 34°F minimum night-time temperature in January in Letterkenny34
    34°F min night temperature
  • 8 hours of daylight per day in January in Letterkenny8
    8 hours of daylight per day
  • No heat & humidity in January in Letterkenny0
    No heat & humidity
  • 5.4 inches monthly rainfall in January in Letterkenny5.4
    5.4 inches of monthly rainfall
  • No UV (maximum) index in January in Letterkenny0
    No UV (Maximum) Index UV index

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The January weather guide for Ireland (Letterkenny) 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)  |  Imperial (°F)

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More about Ireland

How cold is it in Letterkenny in January?

Daytime temperatures usually reach 45°F in Letterkenny in January, falling to 34°F at night.

How sunny is it in Letterkenny in January?

There are normally 1 hour of bright sunshine each day in Letterkenny in January - that's 16% of daylight hours.

Does it rain in Letterkenny in January?

There are usually 24 days with some rain in Letterkenny in January and the average monthly rainfall is 5.4 inches.

Letterkenny January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 08:55 16:14
Thursday, 16th January 2025 08:45 16:37
Friday, 31st January 2025 08:23 17:07

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