January in Coutances is the windiest, the cloudiest, and the coldest month of the year. In January, the weather in Coutances is typically cold. Average daily high temperature in January is about 8 degrees above zero. On average, Coutances has 16 rainy, 7 cloudy, 7 partly cloudy, and 1 sunny day in January. The rains are usually heavy. January as well as February, March, April, and October is considered the most uncomfortable time to visit Coutances.