In December, the weather in Kalush is typically cold. Average daily high temperature in December is about 2 degrees above zero. On average, Kalush has 12 cloudy, 7 partly cloudy, 6 sunny, 5 rainy, and 1 snowy day in December. The rains are usually light. December as well as January, February, March, and April is considered the most uncomfortable time to visit Kalush.