January in Mbuji-Mayi is the rainiest and the cloudiest month of the year. In January, the weather in Mbuji-Mayi is typically warm. Average daily high temperature in January is about 27 degrees above zero. On average, Mbuji-Mayi has 31 rainy days in January. The rains are usually heavy. January as well as February, March, April, and September is considered the most uncomfortable time to visit Mbuji-Mayi.