In December, the weather in Yerevan is typically cold. Average daily high temperature in December is about 2 degrees above zero. On average, Yerevan has 15 sunny, 8 partly cloudy, 4 cloudy, 2 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 Yerevan.