June in Yancheng averages a daily high of 29.1°C with nights around 20.6°C. Expect roughly 9.1 wet days totalling 137.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Yancheng is April–May.
Based on DONGTAI, CH (57.6km), 1995–2024. 23 years of June data.