October in Sinyavino is the rainiest month of the year. In October, the weather in Sinyavino is typically cold. Average daily high temperature in October is about 7 degrees above zero. On average, Sinyavino has 17 rainy, 13 cloudy, and 1 sunny day in October. The rains are usually moderate. October as well as March, April, and November is considered the most uncomfortable time to visit Sinyavino.