In November, the weather in Romans-sur-Isere is typically warm. Average daily high temperature in November is about 9 degrees above zero. On average, Romans-sur-Isere has 11 rainy, 7 partly cloudy, 6 sunny, and 6 cloudy days in November. The rains are usually heavy. November as well as January, February, March, and December is considered the most uncomfortable time to visit Romans-sur-Isere.