In April, the weather in Clermont-Ferrand is typically warm. Average daily high temperature in April is about 12 degrees above zero. On average, Clermont-Ferrand has 17 rainy, 8 sunny, 3 partly cloudy, and 2 cloudy days in April. The rains are usually moderate. April as well as January, February, May, and November is considered the most uncomfortable time to visit Clermont-Ferrand.