Other facts from our historical weather data: Which is the warmest month in Les Vigneaux? August has an average maximum temperature of 18°C (64°F) and is the warmest month of the year. Which is the coldest month in Les Vigneaux? The coldest month is January with an average maximum temperature of -4°C (25°F). Which is the wettest month in Les Vigneaux? November tops the wettest month list with 128mm (5 in) of rainfall. Which is the driest month in Les Vigneaux? August is the driest month with 68mm (2.7 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.