February in Irkutsk averages a daily high of -7.6°C with nights around -19.3°C. Expect roughly 7.1 wet days totalling 10mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Irkutsk is May–August.
Based on IRKUTSK, RS (5.2km), 1995–2024. 27 years of February data.