Wales weather in January 2025

Expect 7°C daytime maximum temperatures in the shade with on average 2 hours of sunshine per day in Wales in January. Check more long-term weather averages for Wales in January before you book your next holiday to Wales in 2025/2026.

  • 7°C maximum daytime temperature in January in Wales (Cardiff)7
    7°C max day temperature
  • 2 hours of sunshine per day
  • 20 days with some rainfall in January in Wales (Cardiff)20
    20 days with some rainfall
  • 2°C minimum night-time temperature in January in Wales (Cardiff)2
    2°C min night temperature
  • 8 hours of daylight per day in January in Wales (Cardiff)8
    8 hours of daylight per day
  • No heat & humidity in January in Wales (Cardiff)0
    No heat & humidity
  • 104 mm monthly rainfall in January in Wales (Cardiff)104
    104 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Wales (Cardiff)1
    1 (Low) UV index
  • 8°C sea temperature in January in Wales (Cardiff)8
    8°C sea temperature

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The January weather guide for Wales (Cardiff) 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 Wales destinations

Below are average maximum temperatures at popular destinations in Wales in January. Select a destination to see more weather parameters.

All Wales regions

All Wales destinations

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

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More about Wales

How cold is it in Wales in January?

Daytime temperatures usually reach 7°C in Cardiff, Wales in January, falling to 2°C at night.

How sunny is it in Wales in January?

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

Is the sea cold around Wales in January?

The average sea temperature around Cardiff, Wales in January is 8°C.

Does it rain in Wales in January?

There are usually 20 days with some rain in Cardiff, Wales in January and the average monthly rainfall is 104mm.

Wales January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 08:18 16:15
Thursday, 16th January 2025 08:10 16:35
Friday, 31st January 2025 07:52 17:01

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