May in Chenghua averages a daily high of 28.5°C with nights around 22.5°C. Expect roughly 14.9 wet days totalling 214.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Chenghua is October–January.
Based on SHANTOU, CH (11.2km), 1995–2024. 17 years of May data.