December in Langenhagen averages a daily high of 5.3°C with nights around 0.6°C. Expect roughly 15.5 wet days totalling 55.9mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Langenhagen is May–September.
Based on HANNOVER, GM (4.4km), 1995–2024. 30 years of December data.