In November, the weather in Namsos is typically cold. Average daily high temperature in November is about 2 degrees above zero. On average, Namsos has 20 rainy, 4 snowy, 4 sunny, 1 cloudy, and 1 partly cloudy day in November. The rains are usually heavy. November as well as March, April, May, and June is considered the most uncomfortable time to visit Namsos.