Dundalk weather in January 2025

Expect 8°C daytime maximum temperatures in the shade with on average 2 hours of sunshine per day in Dundalk in January. Check more long-term weather averages for Dundalk in January before you book your next holiday to Ireland in 2025/2026.

  • 8°C maximum daytime temperature in January in Dundalk8
    8°C max day temperature
  • 2 hours of sunshine per day
  • 19 days with some rainfall in January in Dundalk19
    19 days with some rainfall
  • 2°C minimum night-time temperature in January in Dundalk2
    2°C min night temperature
  • 8 hours of daylight per day in January in Dundalk8
    8 hours of daylight per day
  • No heat & humidity in January in Dundalk0
    No heat & humidity
  • 87 mm monthly rainfall in January in Dundalk87
    87 mm of monthly rainfall
  • No UV (maximum) index in January in Dundalk0
    No UV (Maximum) Index UV index
  • 8°C sea temperature in January in Dundalk8
    8°C sea temperature

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The January weather guide for Ireland (Dundalk) 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 Dundalk in January?

Daytime temperatures usually reach 8°C in Dundalk in January, falling to 2°C at night.

How sunny is it in Dundalk in January?

There are normally 2 hours of bright sunshine each day in Dundalk in January - that's 21% of daylight hours.

Is the sea cold around Dundalk in January?

The average sea temperature around Dundalk in January is 8°C.

Does it rain in Dundalk in January?

There are usually 19 days with some rain in Dundalk in January and the average monthly rainfall is 87mm.

Dundalk January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 08:44 16:14
Thursday, 16th January 2025 08:35 16:37
Friday, 31st January 2025 08:14 17:05

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