Other facts from our historical weather data: When is the rainy season in Mezzana? Rainy season in Mezzana occurs in the months of May, June, July and August. When is winter in Mezzana? The coldest season / winter is in the following months: January, February and December. Which is the warmest month in Mezzana? 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 Mezzana? The coldest month is January with an average maximum temperature of -2°C (28°F). Which is the wettest month in Mezzana? July tops the wettest month list with 225mm (8.9 in) of rainfall. Which is the driest month in Mezzana? January is the driest month with 52mm (2 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.