Arklow weather in January 2025

Expect 46°F daytime maximum temperatures in the shade with on average 2 hours of sunshine per day in Arklow in January. Check more long-term weather averages for Arklow in January before you book your next holiday to Ireland in 2025/2026.

  • 46°F maximum daytime temperature in January in Arklow46
    46°F max day temperature
  • 2 hours of sunshine per day
  • 19 days with some rainfall in January in Arklow19
    19 days with some rainfall
  • 37°F minimum night-time temperature in January in Arklow37
    37°F min night temperature
  • 8 hours of daylight per day in January in Arklow8
    8 hours of daylight per day
  • No heat & humidity in January in Arklow0
    No heat & humidity
  • 3.9 inches monthly rainfall in January in Arklow3.9
    3.9 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Arklow1
    1 (Low) UV index
  • 46°F sea temperature in January in Arklow46
    46°F sea temperature

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

Daytime temperatures usually reach 46°F in Arklow in January, falling to 37°F at night.

How sunny is it in Arklow in January?

There are normally 2 hours of bright sunshine each day in Arklow in January - that's 23% of daylight hours.

How warm is the sea around Arklow in January?

The average sea temperature around Arklow in January is 46°F.

Does it rain in Arklow in January?

There are usually 19 days with some rain in Arklow in January and the average monthly rainfall is 3.9 inches.

Arklow January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 08:37 16:20
Thursday, 16th January 2025 08:28 16:41
Friday, 31st January 2025 08:08 17:08

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