December in Oss averages a daily high of 6.5°C with nights around 1.1°C. Expect roughly 16.2 wet days totalling 70.4mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Oss is May–September.
Based on VOLKEL, NL (17.6km), 1995–2024. 30 years of December data.