September in Münster averages a daily high of 19.9°C with nights around 10.1°C. Expect roughly 11.8 wet days totalling 64.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Münster is May–September.
Based on MUENSTER OSNABRUECK AIRPORT, GM (19.9km), 1995–2024. 30 years of September data.