January in Pietermaritzburg is the cloudiest month of the year. In January, the weather in Pietermaritzburg is typically warm. Average daily high temperature in January is about 25 degrees above zero. On average, Pietermaritzburg has 20 rainy, 5 partly cloudy, 3 sunny, and 3 cloudy days in January. The rains are usually heavy. January as well as February, March, October, and November is considered the most uncomfortable time to visit Pietermaritzburg.