Weather in Cardiff in December
In an average December, Cardiff sees a daily high around 8°C and a low around 4°C, based on 1980–2026 of local climate records.
| Average high | 8°C |
|---|---|
| Typical high range | 4°C to 12°C |
| Average low | 4°C |
| Typical low range | -1°C to 9°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
-4°C
2010-12-25
Low
Highest
13°C
2015-12-19
Lowest
-11°C
2010-12-25
Feels-like
Highest
13°C
2015-12-19
Lowest
-18°C
1981-12-13
Humidity
Highest
10.3 g/m³
2015-12-16
Lowest
2.6 g/m³
2010-12-25
Wind
Highest
64 km/h
1993-12-08
Lowest
4 km/h
1991-12-12
Gust
Highest
117 km/h
2020-12-27
Lowest
9 km/h
1991-12-12
Precip
Wettest
205 mm
2000
Driest
24 mm
1991
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