January in Trapani is the rainiest and the cloudiest month of the year. In January, the weather in Trapani is typically warm. Average daily high temperature in January is about 13 degrees above zero. On average, Trapani has 13 rainy, 11 partly cloudy, and 7 sunny days in January. The rains are usually heavy. January as well as February, March, November, and December is considered the most uncomfortable time to visit Trapani.