October in Bolshaya Atnya is the rainiest month of the year. In October, the weather in Bolshaya Atnya is typically cold. Average daily high temperature in October is about 5 degrees above zero. On average, Bolshaya Atnya has 17 rainy, 13 cloudy, and 1 sunny day in October. The rains are usually moderate. October as well as January and April is considered the most uncomfortable time to visit Bolshaya Atnya.