Planning for the weather is an important factor for making your trip to Les Allues a success, especially when you’re splurging. The hottest months are usually July and August, with an average temperature of 12°C, while the coldest months are January and February, with an average of -4°C. The rainiest months in Les Allues are December, May, January and November, with each month seeing an average of 183 mm of rainfall.