In September, the weather in Bobo Dioulasso is typically hot. Average daily high temperature in September is about 29 degrees above zero. On average, Bobo Dioulasso has 21 rainy, 5 sunny, and 4 partly cloudy days in September. The rains are usually heavy. September as well as May, June, July, and August is considered the most uncomfortable time to visit Bobo Dioulasso.