July in Dundee is the warmest month of the year. In July, the weather in Dundee is typically warm. Average daily high temperature in July is about 16 degrees above zero. On average, Dundee has 17 rainy, 6 cloudy, 5 sunny, and 3 partly cloudy days in July. The rains are usually moderate. July as well as January, February, June, and August is considered the most uncomfortable time to visit Dundee.