August weather forecast in Rosny-sous-Bois

August in Rosny-sous-Bois is the sunniest month of the year. In August, the weather in Rosny-sous-Bois is typically warm. Average daily high temperature in August is about 22 degrees above zero. On average, Rosny-sous-Bois has 11 partly cloudy, 10 sunny, 8 rainy, and 2 cloudy days in August. The rains are usually moderate. August as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit Rosny-sous-Bois.