August in Cognac is the warmest month of the year. In August, the weather in Cognac is typically warm. Average daily high temperature in August is about 24 degrees above zero. On average, Cognac has 16 sunny, 12 partly cloudy, and 3 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 Cognac.