Other facts from our historical weather data: Does Yessey have a dry season? Yes, the months of January, February, March, November and December are very dry. Which is the warmest month in Yessey? July has an average maximum temperature of 19°C (66°F) and is the warmest month of the year. Which is the coldest month in Yessey? The coldest month is January with an average maximum temperature of -27°C (-17°F). Which is the wettest month in Yessey? July tops the wettest month list with 80mm (3.1 in) of rainfall. Which is the driest month in Yessey? January is the driest month with 9mm (0.4 in) of precipitation. Which is the sunniest month in Yessey? July is the sunniest month with an average of 304 hours of sunshine. 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.