July in Dzerzhinsk is the sunniest and the warmest month of the year. In July, the weather in Dzerzhinsk is typically warm. Average daily high temperature in July is about 24 degrees above zero. On average, Dzerzhinsk has 16 sunny, 8 partly cloudy, and 7 rainy days in July. The rains are usually moderate. July as well as August is considered the most comfortable time to visit Dzerzhinsk.