In April, the weather in Ugno-Kurilsk is typically cold. Average daily high temperature in April is about 4 degrees above zero. On average, Ugno-Kurilsk has 10 rainy, 8 sunny, 7 cloudy, and 5 partly cloudy days in April. The rains are usually heavy. April as well as May, November, and December is considered the most uncomfortable time to visit Ugno-Kurilsk.