August in Bamako is the rainiest, the cloudiest, and the coldest month of the year. In August, the weather in Bamako is typically hot. Average daily high temperature in August is about 29 degrees above zero. On average, Bamako has 26 rainy, 3 sunny, 1 cloudy, and 1 partly cloudy day in August. The rains are usually heavy. August as well as July and September is considered the most uncomfortable time to visit Bamako.