January in Tournon-sur-Rhone is the coldest month of the year. In January, the weather in Tournon-sur-Rhone is typically cold. Average daily high temperature in January is about 5 degrees above zero. On average, Tournon-sur-Rhone has 12 rainy, 8 cloudy, 6 sunny, and 5 partly cloudy days in January. The rains are usually moderate. January as well as February, November, and December is considered the most uncomfortable time to visit Tournon-sur-Rhone.