Cork weather in January 2026

Expect daytime maximum temperatures of 46°F in Cork, Ireland in January based on long-term weather averages. There are 2 hours of sunshine per day on average with 21 days with some rainfall and typically 4.6 inches of rainfall in the month.

  • 46°F maximum daytime temperature in January in Cork46
    46°F max day temperature
  • 2 hours of sunshine per day
  • 21 days with some rainfall in January in Cork21
    21 days with some rainfall
  • 37°F minimum night-time temperature in January in Cork37
    37°F min night temperature
  • 8 hours of daylight per day in January in Cork8
    8 hours of daylight per day
  • No heat & humidity in January in Cork0
    No heat & humidity
  • 4.6 inches monthly rainfall in January in Cork4.6
    4.6 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Cork1
    1 (Low) UV index
  • 48°F sea temperature in January in Cork48
    48°F sea temperature

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

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

How sunny is it in Cork in January?

There are normally 2 hours of bright sunshine each day in Cork in January - that's 20% of daylight hours.

How warm is the sea around Cork in January?

The average sea temperature around Cork in January is 48°F.

Does it rain in Cork in January?

There are usually 21 days with some rain in Cork in January and the average monthly rainfall is 4.6 inches.

Cork January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 08:42 16:34
Friday, 16th January 2026 08:34 16:54
Saturday, 31st January 2026 08:15 17:20

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