September in Jiang’an averages a daily high of 28°C with nights around 20.8°C. Expect roughly 14.9 wet days totalling 133.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Jiang’an is March–May.
Based on YIBIN, CH (46.2km), 1995–2024. 23 years of September data.