Other facts from our historical weather data: When is winter in Chateauroux-les-Alpes? The coldest season / winter is in the following months: January, February and December. Which is the warmest month in Chateauroux-les-Alpes? August has an average maximum temperature of 20°C (68°F) and is the warmest month of the year. Which is the coldest month in Chateauroux-les-Alpes? The coldest month is January with an average maximum temperature of -2°C (28°F). Which is the wettest month in Chateauroux-les-Alpes? November tops the wettest month list with 123mm (4.8 in) of rainfall. Which is the driest month in Chateauroux-les-Alpes? August is the driest month with 55mm (2.2 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.