July in Greater Sudbury is the warmest month of the year. In July, the weather in Greater Sudbury is typically warm. Average daily high temperature in July is about 22 degrees above zero. On average, Greater Sudbury has 10 sunny, 10 partly cloudy, 8 rainy, and 3 cloudy 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 Greater Sudbury.