January in Mazara del Vallo is the cloudiest month of the year. In January, the weather in Mazara del Vallo is typically warm. Average daily high temperature in January is about 14 degrees above zero. On average, Mazara del Vallo has 11 rainy, 9 sunny, 9 partly cloudy, and 2 cloudy days in January. The rains are usually moderate. January as well as February, March, November, and December is considered the most uncomfortable time to visit Mazara del Vallo.