December in Roskilde averages a daily high of 4.8°C with nights around 1.9°C. Expect roughly 14.2 wet days totalling 41mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Roskilde is June–September.
Based on FALSTERBO, SW (54.9km), 1995–2024. 30 years of December data.