August in Riviere Du Loup is the sunniest month of the year. In August, the weather in Riviere Du Loup is typically warm. Average daily high temperature in August is about 21 degrees above zero. On average, Riviere Du Loup has 15 partly cloudy, 12 sunny, and 4 rainy days in August. The rains are usually heavy. August as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit Riviere Du Loup.