January in Yakutsk averages a daily high of -34.2°C with nights around -39.9°C. Expect roughly 11.3 wet days totalling 9.5mm. 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. 25 years of January data.