December in Pretoria is the rainiest and the cloudiest month of the year. In December, the weather in Pretoria is typically hot. Average daily high temperature in December is about 29 degrees above zero. On average, Pretoria has 15 rainy, 9 partly cloudy, and 7 sunny days in December. The rains are usually heavy. December as well as January, February, and November is considered the most uncomfortable time to visit Pretoria.