In June, the weather in Kalach-na-Donu is typically warm. Average daily high temperature in June is about 26 degrees above zero. On average, Kalach-na-Donu has 18 sunny, 9 partly cloudy, and 3 rainy days in June. The rains are usually light. June as well as August and September is considered the most comfortable time to visit Kalach-na-Donu.