May in Osnabrück averages a daily high of 18.4°C with nights around 7.8°C. Expect roughly 12.4 wet days totalling 53.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Osnabrück is May–September.
Based on BELM, GM (9.6km), 1995–2024. 14 years of May data.