December in Prato averages a daily high of -1.2°C with nights around -5°C. Expect roughly 7.5 wet days totalling 87mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Prato is July–August.
Based on MONTE CIMONE, IT (47.6km), 1995–2024. 11 years of December data.