Other facts from our historical weather data: Which months have the greatest rainfall in Moutiers? Most rainfall (rainy season) is seen in June and December. When is winter in Moutiers? The coldest season / winter is in the following months: January, February and December. Which is the warmest month in Moutiers? 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 Moutiers? The coldest month is January with an average maximum temperature of -1°C (30°F). Which is the wettest month in Moutiers? December tops the wettest month list with 157mm (6.2 in) of rainfall. Which is the driest month in Moutiers? October is the driest month with 114mm (4.5 in) of precipitation. Which is the sunniest month in Moutiers? July is the sunniest month with an average of 262 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.