August in Andoany is the coldest month of the year. In August, the weather in Andoany is typically warm. Average daily high temperature in August is about 25 degrees above zero. On average, Andoany has 15 partly cloudy, 14 sunny, and 2 rainy days in August. The rains are usually light. August as well as July and September is considered the most comfortable time to visit Andoany.