December in Oberhausen averages a daily high of 5.8°C with nights around 1.7°C. Expect roughly 17.7 wet days totalling 91.2mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Oberhausen is May–September.
Based on ESSEN BREDENEY, GM (10.9km), 1995–2024. 30 years of December data.