May in Hechuan averages a daily high of 27.7°C with nights around 19.4°C. Expect roughly 15.2 wet days totalling 142.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Hechuan is March–May.
Based on CHONGQING, CH (49.5km), 1995–2024. 24 years of May data.