June in Bol'shaya Kosul' is the sunniest month of the year. In June, the weather in Bol'shaya Kosul' is typically warm. Average daily high temperature in June is about 21 degrees above zero. On average, Bol'shaya Kosul' has 11 partly cloudy, 9 sunny, 7 rainy, and 3 cloudy days in June. The rains are usually light. June as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit Bol'shaya Kosul'.