September in Huainan averages a daily high of 28°C with nights around 19.7°C. Expect roughly 6.5 wet days totalling 73.5mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Huainan is April–May.
Based on BENGBU, CH (49.9km), 1995–2024. 22 years of September data.