Other facts from our historical weather data: When is winter in Primorsk? The coldest season / winter is in the following months: January, February, March and December. Which is the warmest month in Primorsk? July has an average maximum temperature of 20°C (68°F) and is the warmest month of the year. Which is the coldest month in Primorsk? The coldest month is February with an average maximum temperature of -2°C (28°F). Which is the wettest month in Primorsk? October tops the wettest month list with 99mm (3.9 in) of rainfall. Which is the driest month in Primorsk? April is the driest month with 41mm (1.6 in) of precipitation. No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.