Planning for the weather is a good way to make your trip to La Thuile relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August with an average temp of 52°F, while the coldest months are January and February with an average of 21°F. The rainiest months in La Thuile are December, May, June, and January, with each month seeing an average of 8 inches of rainfall.