July in Cooma is the coldest month of the year. In July, the weather in Cooma is typically cold. Average daily high temperature in July is about 8 degrees above zero. On average, Cooma has 11 sunny, 10 partly cloudy, 7 rainy, and 3 cloudy days in July. The rains are usually light. July as well as June, August, and September is considered the most uncomfortable time to visit Cooma.