October in Primorsk is the rainiest month of the year. In October, the weather in Primorsk is typically cold. Average daily high temperature in October is about 7 degrees above zero. On average, Primorsk has 16 rainy, 7 cloudy, 6 partly cloudy, and 2 sunny days in October. The rains are usually heavy. October as well as November is considered the most uncomfortable time to visit Primorsk.