January weather forecast in Johannesburg

January in Johannesburg is the cloudiest month of the year. In January, the weather in Johannesburg is typically warm. Average daily high temperature in January is about 26 degrees above zero. On average, Johannesburg has 16 rainy, 7 sunny, 5 partly cloudy, and 3 cloudy days in January. The rains are usually heavy. January as well as February, November, and December is considered the most uncomfortable time to visit Johannesburg.