December in Mazara del Vallo averages a daily high of 16.6°C. Expect roughly 12.5 wet days totalling 68.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Mazara del Vallo is April–June.
Based on TRAPANI BIRGI, IT (29.8km), 1995–2024. 20 years of December data.