March in Haicheng averages a daily high of 7.8°C with nights around -1.3°C. Expect roughly 3.2 wet days totalling 14.3mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Haicheng is May–June.
Based on YINGKOU, CH (50.5km), 1995–2024. 24 years of March data.