January in Barnaul averages a daily high of -12.1°C with nights around -21.7°C. Expect roughly 13.1 wet days totalling 23.1mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Barnaul is May–September.
Based on BARNAUL, RS (16.1km), 1995–2024. 25 years of January data.