In December, the weather in Pyatigorsk is typically cold. Average daily high temperature in December is about 3 degrees above zero. On average, Pyatigorsk has 12 cloudy, 9 partly cloudy, 5 sunny, 3 rainy, and 2 snowy days in December. The rains are usually light. December as well as January, February, March, and April is considered the most uncomfortable time to visit Pyatigorsk.