Wales weather in January 2023

  • 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

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

Wales regions

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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.

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

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More about the UK

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 2023. 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
Sunday, 1st January 2023 08:18 16:14
Monday, 16th January 2023 08:11 16:34
Tuesday, 31st January 2023 07:53 17:00

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