August in Antsirabe is the windiest month of the year. In August, the weather in Antsirabe is typically warm. Average daily high temperature in August is about 24 degrees above zero. On average, Antsirabe has 13 partly cloudy, 10 sunny, and 8 rainy days in August. The rains are usually light. August as well as June and July is considered the most comfortable time to visit Antsirabe.