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