January in Mestre is the cloudiest and the coldest month of the year. In January, the weather in Mestre is typically cold. Average daily high temperature in January is about 6 degrees above zero. On average, Mestre has 9 rainy, 9 partly cloudy, 8 sunny, and 5 cloudy days in January. The rains are usually heavy. January as well as February, November, and December is considered the most uncomfortable time to visit Mestre.