September in Oss averages a daily high of 20.3°C with nights around 9.7°C. Expect roughly 11.5 wet days totalling 58.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Oss is May–September.
Based on VOLKEL, NL (17.6km), 1995–2024. 30 years of September data.