July in Napaskiak is the warmest month of the year. In July, the weather in Napaskiak is typically warm. Average daily high temperature in July is about 15 degrees above zero. On average, Napaskiak has 25 rainy, 3 sunny, 2 cloudy, and 1 partly cloudy day in July. The rains are usually heavy. July as well as January, February, April, and May is considered the most uncomfortable time to visit Napaskiak.