December in Oldenburg averages a daily high of 5.9°C with nights around 1.6°C. Expect roughly 17.2 wet days totalling 75.4mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Oldenburg is May–September.
Based on FRIESOYTHE EDEWECHTERDAM, GM (19km), 1995–2024. 25 years of December data.