Cardiff Weather in January
7.9°C high · 2.7°C low · 111 mm rain · 1.2h sun
Jan is a cool month in Cardiff — not peak season, but a good time to avoid crowds.
January at a glance
| Metric | Value |
|---|---|
| Average high | 7.9°C |
| Average low | 2.7°C |
| Rainfall | 111 mm |
| Sunshine | 1.2 hours/day |
| Daylight | 8.1 hours |
What to pack in January
Pack a warm coat and layers, plus a raincoat and umbrella for Cardiff in January.
Cardiff weather by month
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Frequently asked questions
What is the weather in Cardiff in January?
Highs of 7.9°C and lows of 2.7°C, with about 111 mm of rain and 1.2 hours of sunshine per day.
Is January a good time to visit Cardiff?
Jan is a cool month in Cardiff — not peak season, but a good time to avoid crowds.
What to do in Cardiff · Best time to visit Cardiff
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.