January in Mazara del Vallo is the rainiest month of the year. In January, the weather in Mazara del Vallo is typically warm. Average daily high temperature in January is about 13 degrees above zero. On average, Mazara del Vallo has 14 sunny, 12 rainy, and 5 partly cloudy days in January. The rains are usually heavy. January as well as February is considered the most uncomfortable time to visit Mazara del Vallo.