July weather forecast in South Portland

July in South Portland is the warmest month of the year. In July, the weather in South Portland is typically warm. Average daily high temperature in July is about 23 degrees above zero. On average, South Portland has 13 partly cloudy, 11 sunny, 6 rainy, and 1 cloudy day in July. The rains are usually moderate. July as well as August and September is considered the most comfortable time to visit South Portland.