June in Ust-Kamenka is the sunniest month of the year. In June, the weather in Ust-Kamenka is typically warm. Average daily high temperature in June is about 21 degrees above zero. On average, Ust-Kamenka has 11 sunny, 9 rainy, 9 partly cloudy, and 1 cloudy day in June. The rains are usually moderate.