September in Osnabrück averages a daily high of 19.8°C with nights around 10.3°C. Expect roughly 11.6 wet days totalling 55.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Osnabrück is May–September.
Based on BELM, GM (9.6km), 1995–2024. 14 years of September data.