July in Sumon U-Shynaansky is the rainiest and the warmest month of the year. In July, the weather in Sumon U-Shynaansky is typically warm. Average daily high temperature in July is about 19 degrees above zero. On average, Sumon U-Shynaansky has 27 rainy and 4 sunny days in July. The rains are usually heavy. July as well as January, February, April, and May is considered the most uncomfortable time to visit Sumon U-Shynaansky.