July in Novhorod-Siverskyi is the rainiest and the warmest month of the year. In July, the weather in Novhorod-Siverskyi is typically warm. Average daily high temperature in July is about 25 degrees above zero. On average, Novhorod-Siverskyi has 14 rainy, 9 sunny, 4 cloudy, and 4 partly cloudy days in July. The rains are usually heavy.