May in Voronezh averages a daily high of 21.6°C with nights around 10°C. Expect roughly 10.1 wet days totalling 45.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Voronezh is May–September.
Based on VORONEZ, RS (3.9km), 1995–2024. 30 years of May data.