In December, the weather in Diyarbakir is typically cold. Average daily high temperature in December is about 7 degrees above zero. On average, Diyarbakir has 13 sunny, 10 partly cloudy, 7 rainy, and 1 cloudy day in December. The rains are usually moderate. December as well as January, February, and March is considered the most uncomfortable time to visit Diyarbakir.