December in Yakutsk averages a daily high of -34.1°C with nights around -39.2°C. Expect roughly 10.6 wet days totalling 8.9mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Yakutsk is June–August.
Based on JAKUTSK, RS (1.6km), 1995–2024. 24 years of December data.