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Cardiff weather in January 2023
- 77°C max day temperature
- 2020 days with some rainfall
- 22°C min night temperature
- 88 hours of daylight per day
- 0No heat & humidity
- 104104 mm of monthly rainfall
- 11 (Low) UV index
- 88°C sea temperature
Recommended for Wales
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.
Metric (°C / mm) | Imperial (°F / inches)
More about the UK
How cold is it in Cardiff in January?
Daytime temperatures usually reach 7°C in Cardiff in January, falling to 2°C at night.
How sunny is it in Cardiff in January?
There are normally 2 hours of bright sunshine each day in Cardiff in January - that's 20% of daylight hours.
Is the sea cold around Cardiff in January?
The average sea temperature around Cardiff in January is 8°C.
Does it rain in Cardiff in January?
There are usually 20 days with some rain in Cardiff in January and the average monthly rainfall is 104mm.
Cardiff January sunrise & sunset times
Browse the sunrise and sunset times for Cardiff in January 2023. Select a month to view Cardiff sunrise and sunset times for the next 12 months.
|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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