July in Ust'-Kem' is the warmest month of the year. In July, the weather in Ust'-Kem' is typically warm. Average daily high temperature in July is about 23 degrees above zero. On average, Ust'-Kem' has 12 partly cloudy, 8 sunny, 7 rainy, and 4 cloudy days in July. The rains are usually light.