May in Tongren averages a daily high of 26.7°C with nights around 17.7°C. Expect roughly 15.4 wet days totalling 201.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Tongren is September–November.
Based on ZHIJIANG, CH (57.4km), 1995–2024. 24 years of May data.