January in Weihai averages a daily high of 2.6°C with nights around -2.2°C. Expect roughly 4.6 wet days totalling 12.4mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Weihai is September–October.
Based on CHENGSHANTOU, CH (51.7km), 1995–2024. 26 years of January data.