September in Sanhui averages a daily high of 29.7°C with nights around 21.6°C. Expect roughly 11.5 wet days totalling 121.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Sanhui is March–May.
Based on CHONGQING, CH (56.7km), 1995–2024. 24 years of September data.