December in Wiesbaden averages a daily high of 4.3°C with nights around -0.3°C. Expect roughly 16.8 wet days totalling 74.3mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Wiesbaden is May–September.
Based on WIESBADEN AURINGEN, GM (7.4km), 1995–2024. 30 years of December data.