January weather forecast in Plymouth

January in Plymouth is the rainiest and the windiest month of the year. In January, the weather in Plymouth is typically cold. Average daily high temperature in January is about 8 degrees above zero. On average, Plymouth has 24 rainy, 5 sunny, and 2 cloudy days in January. The rains are usually heavy. January as well as February, March, July, and October is considered the most uncomfortable time to visit Plymouth.