January in Kranj is the snowiest and the coldest month of the year. In January, the weather in Kranj is typically freezing. Average daily high temperature in January is about 1 degree above zero. On average, Kranj has 10 cloudy, 7 rainy, 5 snowy, 5 sunny, and 4 partly cloudy days in January. The rains are usually heavy. January as well as February, March, April, and May is considered the most uncomfortable time to visit Kranj.