September in Bima is the windiest month of the year. In September, the weather in Bima is typically warm. Average daily high temperature in September is about 27 degrees above zero. On average, Bima has 20 sunny, 7 partly cloudy, 2 rainy, and 1 cloudy day in September. The rains are usually light. September as well as August is considered the most comfortable time to visit Bima.