Climate almanac
Newcastle
Northern Ireland, United Kingdom · 54.22°, -5.89°
What is the weather like in Newcastle in December?
In December, Newcastle is typically 47°F (9°C) during the day and 42°F (5°C) at night. The month brings about 4.1 in (103 mm) of precipitation in total. Snowfall averages about 0.1 in (3 mm) over the month.
- Average high47°F (9°C)
- Average low42°F (5°C)
- Precipitation4.1 in (103 mm)
- Clear or mostly clear days2
- Snowfall0.1 in (3 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)