Weather in Cardiff in December
In an average December, Cardiff sees a daily high around 7°C and a low around 2°C, based on 1980–2026 of local climate records.
| Average high | 7°C |
|---|---|
| Typical high range | 2°C to 11°C |
| Average low | 2°C |
| Typical low range | -3°C to 8°C |
| Average daily precipitation | 3 mm |
December records
The most extreme December on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total December accumulation.
High
Highest
14°C
1985-12-02
Lowest
-7°C
2010-12-25
Low
Highest
12°C
2015-12-26
Lowest
-16°C
2010-12-25
Feels-like
Highest
12°C
2015-12-26
Lowest
-23°C
2010-12-25
Humidity
Highest
10.4 g/m³
2015-12-19
Lowest
1.9 g/m³
2010-12-25
Wind
Highest
54 km/h
1999-12-24
Lowest
3 km/h
2024-12-27
Gust
Highest
131 km/h
1999-12-24
Lowest
9 km/h
2024-12-27
Precip
Wettest
234 mm
2000
Driest
27 mm
1991
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