July weather forecast in Barrie

July in Barrie is the sunniest and the warmest month of the year. In July, the weather in Barrie is typically warm. Average daily high temperature in July is about 24 degrees above zero. On average, Barrie has 18 sunny, 8 rainy, and 5 partly cloudy days in July. The rains are usually moderate. July as well as August is considered the most comfortable time to visit Barrie.