January in Chefchaouen is the coldest month of the year. In January, the weather in Chefchaouen is typically warm. Average daily high temperature in January is about 11 degrees above zero. On average, Chefchaouen has 12 rainy, 8 sunny, 7 cloudy, and 4 partly cloudy days in January. The rains are usually heavy. January as well as February and March is considered the most uncomfortable time to visit Chefchaouen.