Climate almanac
Swansea
Wales, United Kingdom · 51.62°, -3.94°
What is the weather like in Swansea in December?
In December, Swansea is typically 49°F (10°C) during the day and 45°F (7°C) at night. The month brings about 7.0 in (177 mm) of precipitation in total. Snowfall averages about 0.2 in (5 mm) over the month.
- Average high49°F (10°C)
- Average low45°F (7°C)
- Precipitation7.0 in (177 mm)
- Clear or mostly clear days2
- Snowfall0.2 in (5 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)