August in Prosiana is the sunniest and the hottest month of the year. In August, the weather in Prosiana is typically hot. Average daily high temperature in August is about 28 degrees above zero. On average, Prosiana has 26 sunny, 4 partly cloudy, and 1 rainy day in August. The rains are usually light. August as well as September is considered the most comfortable time to visit Prosiana.