Portrush weather in January 2025

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

  • 45°F maximum daytime temperature in January in Portrush45
    45°F max day temperature
  • 1 hour of sunshine per day
  • 22 days with some rainfall in January in Portrush22
    22 days with some rainfall
  • 34°F minimum night-time temperature in January in Portrush34
    34°F min night temperature
  • 8 hours of daylight per day in January in Portrush8
    8 hours of daylight per day
  • No heat & humidity in January in Portrush0
    No heat & humidity
  • 4.6 inches monthly rainfall in January in Portrush4.6
    4.6 inches of monthly rainfall
  • No UV (maximum) index in January in Portrush0
    No UV (Maximum) Index UV index
  • 48°F sea temperature in January in Portrush48
    48°F sea temperature

More about Portrush

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The January weather guide for Northern Ireland (Portrush) 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 the UK

How cold is it in Portrush in January?

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

How sunny is it in Portrush in January?

There are normally 1 hour of bright sunshine each day in Portrush in January - that's 15% of daylight hours.

How warm is the sea around Portrush in January?

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

Does it rain in Portrush in January?

There are usually 22 days with some rain in Portrush in January and the average monthly rainfall is 4.6 inches.

Portrush January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 08:53 16:08
Thursday, 16th January 2025 08:42 16:31
Friday, 31st January 2025 08:20 17:01

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