January in Dessau averages a daily high of 3.9°C with nights around -1.5°C. Expect roughly 14.3 wet days totalling 40.2mm. 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 January data.