May in Prato averages a daily high of 7.6°C with nights around 2.9°C. Expect roughly 10.5 wet days totalling 95.5mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Prato is July–August.
Based on MONTE CIMONE, IT (47.6km), 1995–2024. 14 years of May data.