August in Bol'shoy Khatymi is the sunniest month of the year. In August, the weather in Bol'shoy Khatymi is typically warm. Average daily high temperature in August is about 16 degrees above zero. On average, Bol'shoy Khatymi has 25 rainy, 4 sunny, and 2 cloudy days in August. The rains are usually heavy. August as well as January, February, March, and May is considered the most uncomfortable time to visit Bol'shoy Khatymi.