January in Zhoushan averages a daily high of 10.3°C with nights around 3.3°C. Expect roughly 10.6 wet days totalling 77.6mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Zhoushan is October.
Based on DINGHAI, CH (9.8km), 1995–2024. 26 years of January data.