May in Bolzano averages a daily high of 8.4°C with nights around 2.4°C. Expect roughly 13.6 wet days totalling 107.8mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Bolzano is June–August.
Based on PAGANELLA, IT (44.6km), 1995–2024. 17 years of May data.