December in Erdenet averages a daily high of -11.1°C with nights around -21.9°C. Rain is rare — about 0.7 wet days and 2.8mm across the month. A hard month to visit for comfort alone.
Across the year, the best time to visit Erdenet is May–June.
Based on BULGAN, MG (46.8km), 1995–2024. 30 years of December data.