May in Penza averages a daily high of 21.3°C with nights around 8.7°C. Expect roughly 9.7 wet days totalling 42.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Penza is May–September.
Based on PENZA, RS (7.3km), 1995–2024. 30 years of May data.