Weather in Swansea, Wales, United Kingdom in December
In an average December, Swansea sees a daily high around 8°C and a low around 5°C, based on 1981–2026 of local climate records.
| Average high | 8°C |
|---|---|
| Typical high range | 4°C to 12°C |
| Average low | 5°C |
| Typical low range | 1°C to 9°C |
| Average daily precipitation | 5 mm |
December records
The most extreme December on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total December accumulation.
High
Highest
14°C
1985-12-02
Lowest
0°C
1995-12-28
Low
Highest
12°C
2015-12-19
Lowest
-3°C
1996-12-31
Feels-like
Highest
12°C
2015-12-19
Lowest
-12°C
1996-12-31
Humidity
Highest
10.2 g/m³
1994-12-11
Lowest
3.7 g/m³
1996-12-31
Wind
Highest
86 km/h
1993-12-08
Lowest
7 km/h
2024-12-27
Precip
Wettest
218 mm
2020
Driest
36 mm
2010
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