May in Kuopio averages a daily high of 15.2°C with nights around 5.6°C. Expect roughly 11.1 wet days totalling 44.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Kuopio is June–August.
Based on KUOPIO SAVILAHTI, FI (2km), 1995–2024. 19 years of May data.