December in Hulunbuir averages a daily high of -17.2°C with nights around -26.8°C. Expect roughly 6.8 wet days totalling 8.1mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Hulunbuir is May–June.
Based on HAILAR, CH (5.9km), 1995–2024. 25 years of December data.