July in Kotlik is the rainiest and the warmest month of the year. In July, the weather in Kotlik is typically warm. Average daily high temperature in July is about 14 degrees above zero. On average, Kotlik has 20 rainy, 7 cloudy, 3 sunny, and 1 partly cloudy day in July. The rains are usually moderate. July as well as January, February, March, and August is considered the most uncomfortable time to visit Kotlik.