In April, the weather in Uglegorsk is typically cold. Average daily high temperature in April is about 1 degree above zero. On average, Uglegorsk has 7 snowy, 7 partly cloudy, 6 sunny, 5 rainy, and 5 cloudy days in April. The snowfalls are usually heavy. April as well as January, February, May, and September is considered the most uncomfortable time to visit Uglegorsk.