May in Zhengzhou averages a daily high of 28.3°C with nights around 16.4°C. Expect roughly 5.4 wet days totalling 49.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Zhengzhou is April–May.
Based on ZHENGZHOU, CH (4.5km), 1995–2024. 22 years of May data.