April in Smolensk averages a daily high of 12°C with nights around 2.1°C. Expect roughly 10.7 wet days totalling 40mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Smolensk is May–September.
Based on SMOLENSK, RS (3.3km), 1995–2024. 25 years of April data.