September in Munich averages a daily high of 19.8°C with nights around 10.2°C. Expect roughly 12.6 wet days totalling 81.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Munich is May–September.
Based on MUNCHEN NYMPHENBURG, GM (6.3km), 1995–2024. 30 years of September data.