September in Changchun averages a daily high of 22.5°C with nights around 11.4°C. Expect roughly 6.5 wet days totalling 47.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Changchun is May.
Based on CHANGCHUN, CH (8.8km), 1995–2024. 19 years of September data.