September in Wuxi averages a daily high of 29.7°C with nights around 21.5°C. Expect roughly 7.5 wet days totalling 63.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Wuxi is October–November.
Based on LINGLING, CH (45.9km), 1995–2024. 23 years of September data.