December in Durban is the rainiest month of the year. In December, the weather in Durban is typically warm. Average daily high temperature in December is about 23 degrees above zero. On average, Durban has 21 rainy, 5 sunny, 4 cloudy, and 1 partly cloudy day in December. The rains are usually heavy. December as well as January, October, and November is considered the most uncomfortable time to visit Durban.