July in Haines is the cloudiest and the warmest month of the year. In July, the weather in Haines is typically warm. Average daily high temperature in July is about 12 degrees above zero. On average, Haines has 22 rainy, 6 cloudy, 2 sunny, and 1 partly cloudy day in July. The rains are usually moderate. July as well as April, May, June, and August is considered the most uncomfortable time to visit Haines.