September in Chemnitz averages a daily high of 18.4°C with nights around 10.2°C. Expect roughly 11.5 wet days totalling 69.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Chemnitz is June–September.
Based on CHEMNITZ, GM (6.2km), 1995–2024. 30 years of September data.