Other facts from our historical weather data: Which is the warmest month in Champagny-en-Vanoise? July has an average maximum temperature of 18°C (64°F) and is the warmest month of the year. Which is the coldest month in Champagny-en-Vanoise? The coldest month is January with an average maximum temperature of -4°C (25°F). Which is the wettest month in Champagny-en-Vanoise? December tops the wettest month list with 143mm (5.6 in) of rainfall. Which is the driest month in Champagny-en-Vanoise? August is the driest month with 96mm (3.8 in) of precipitation. Which is the sunniest month in Champagny-en-Vanoise? July is the sunniest month with an average of 275 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.