June in Sun Peaks is the rainiest month of the year. In June, the weather in Sun Peaks is typically warm. Average daily high temperature in June is about 19 degrees above zero. On average, Sun Peaks has 15 rainy, 7 sunny, 6 partly cloudy, and 2 cloudy days in June. The rains are usually heavy. June as well as February, March, April, and May is considered the most uncomfortable time to visit Sun Peaks.