December in Dessau averages a daily high of 4.8°C with nights around -0.4°C. Expect roughly 15 wet days totalling 42.1mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Dessau is May–September.
Based on KOTHEN ANHALT, GM (18.8km), 1995–2024. 30 years of December data.