May in Sanmenxia averages a daily high of 28.6°C with nights around 15.2°C. Expect roughly 6.4 wet days totalling 49.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Sanmenxia is March–May.
Based on YUNCHENG, CH (32.6km), 1995–2024. 24 years of May data.