In March, the weather in Saint-Etienne is typically cold. Average daily high temperature in March is about 9 degrees above zero. On average, Saint-Etienne has 9 rainy, 9 sunny, 8 partly cloudy, and 5 cloudy days in March. The rains are usually light. March as well as January, February, April, and May is considered the most uncomfortable time to visit Saint-Etienne.