June in Ketchikan is the cloudiest month of the year. In June, the weather in Ketchikan is typically warm. Average daily high temperature in June is about 13 degrees above zero. On average, Ketchikan has 26 rainy, 2 sunny, and 2 cloudy days in June. The rains are usually heavy. June as well as January, February, March, and April is considered the most uncomfortable time to visit Ketchikan.