December in Düsseldorf averages a daily high of 6.6°C with nights around 1.5°C. Expect roughly 16.6 wet days totalling 68.1mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Düsseldorf is May–September.
Based on DUSSELDORF, GM (8.2km), 1995–2024. 30 years of December data.