In June, the weather in Ust-Kumir is typically warm. Average daily high temperature in June is about 16 degrees above zero. On average, Ust-Kumir has 19 rainy, 7 sunny, 3 partly cloudy, and 1 cloudy day in June. The rains are usually heavy. June as well as January, February, April, and May is considered the most uncomfortable time to visit Ust-Kumir.