January in Voronezh averages a daily high of -3.9°C with nights around -9.1°C. Expect roughly 15.5 wet days totalling 46.8mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Voronezh is May–September.
Based on VORONEZ, RS (3.9km), 1995–2024. 25 years of January data.