August in Clermont-Ferrand is the sunniest and the warmest month of the year. In August, the weather in Clermont-Ferrand is typically warm. Average daily high temperature in August is about 22 degrees above zero. On average, Clermont-Ferrand has 15 sunny, 11 partly cloudy, and 5 rainy days in August. The rains are usually light. August as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit Clermont-Ferrand.