Ireland weather in January 2025

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

  • 8°C maximum daytime temperature in January in Ireland (Dublin)8
    8°C max day temperature
  • 2 hours of sunshine per day
  • 18 days with some rainfall in January in Ireland (Dublin)18
    18 days with some rainfall
  • 3°C minimum night-time temperature in January in Ireland (Dublin)3
    3°C min night temperature
  • 8 hours of daylight per day in January in Ireland (Dublin)8
    8 hours of daylight per day
  • No heat & humidity in January in Ireland (Dublin)0
    No heat & humidity
  • 62 mm monthly rainfall in January in Ireland (Dublin)62
    62 mm of monthly rainfall
  • No UV (maximum) index in January in Ireland (Dublin)0
    No UV (Maximum) Index UV index
  • 9°C sea temperature in January in Ireland (Dublin)9
    9°C sea temperature

More about Ireland

Ireland by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Ireland

Hilton: up to 17% off Best Available Rate

  • Save up to 17% on Hilton hotels with Best rate
  • Become a Hilton Honors member for free
  • Book hotels & resorts in worldwide destinations
Go to Hilton deal >>

View all Hilton offers

The January weather guide for Ireland (Dublin) 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.

Top Ireland destinations

Below are average maximum temperatures at popular countries, regions and places in Ireland in January. Select a holiday destination to see more weather parameters.

All Ireland destinations

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

More about Ireland

How warm is it in Ireland in January?

Daytime temperatures usually reach 8°C in Dublin, Ireland in January, falling to 3°C at night.

How sunny is it in Ireland in January?

There are normally 2 hours of bright sunshine each day in Dublin, Ireland in January - that's 22% of daylight hours.

Is the sea cold around Ireland in January?

The average sea temperature around Dublin, Ireland in January is 9°C.

Does it rain in Ireland in January?

There are usually 18 days with some rain in Dublin, Ireland in January and the average monthly rainfall is 62mm.

Ireland January sunrise & sunset times

Browse the sunrise and sunset times for Ireland in January 2025. Select a month to view Ireland sunrise and sunset times for the next 12 months. The Ireland sunrise and sunset times shown below are for Dublin.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 08:40 16:18
Thursday, 16th January 2025 08:31 16:39
Friday, 31st January 2025 08:11 17:07

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^