October in Rostov is the rainiest month of the year. In October, the weather in Rostov is typically cold. Average daily high temperature in October is about 6 degrees above zero. On average, Rostov has 17 cloudy, 13 rainy, and 1 sunny day in October. The rains are usually moderate. October as well as January, April, and November is considered the most uncomfortable time to visit Rostov.