August in Faya-Largeau is the cloudiest month of the year. In August, the weather in Faya-Largeau is typically hot. Average daily high temperature in August is about 38 degrees above zero. On average, Faya-Largeau has 16 partly cloudy and 15 sunny days in August. August as well as April, May, June, and July is considered the most uncomfortable time to visit Faya-Largeau.