December in Nianbo averages a daily high of 3.3°C with nights around -12.9°C. Rain is rare — about 1.5 wet days and 1.7mm across the month. A hard month to visit for comfort alone.
Across the year, the best time to visit Nianbo is April–September.
Based on XINING, CH (60km), 1995–2024. 26 years of December data.