December in Bīrjand averages a daily high of 15°C. Rain is rare — about 2.8 wet days and 12.1mm across the month. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Bīrjand is March–April.
Based on BIRJAND, IR (5.5km), 1995–2024. 16 years of December data.