January in Beijing averages a daily high of 2.2°C with nights around -7.3°C. Rain is rare — about 1.3 wet days and 2.8mm across the month. A hard month to visit for comfort alone.
Across the year, the best time to visit Beijing is April–May.
Based on BEIJING, CH (10.1km), 1995–2024. 20 years of January data.