December in Lincoln averages a daily high of 7.5°C with nights around 2°C. Expect roughly 16.9 wet days totalling 73.5mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Lincoln is June–September.
Based on NOTTINGHAM WATNALL, UK (53.5km), 1995–2024. 29 years of December data.