December in Newcastle upon Tyne averages a daily high of 7.5°C with nights around 1.6°C. Expect roughly 15.6 wet days totalling 60.4mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Newcastle upon Tyne is June–September.
Based on DURHAM, UK (22.9km), 1995–2024. 27 years of December data.