September in Changsha averages a daily high of 29.3°C with nights around 21.2°C. Expect roughly 7 wet days totalling 78.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Changsha is September–November.
Based on CHANGSHA, CH (10.9km), 1995–2024. 23 years of September data.