July in Coquitlam is the sunniest month of the year. In July, the weather in Coquitlam is typically warm. Average daily high temperature in July is about 18 degrees above zero. On average, Coquitlam has 16 sunny, 9 partly cloudy, and 6 rainy days in July. The rains are usually moderate. July as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit Coquitlam.