Planning for the weather is a good way to make your trip to Saint-Lary-Soulan relaxing and enjoyable, especially when you're splurging. The hottest months are usually August and July, with an average temperature of 15°C, while the coldest months are February and January, with an average of 1°C. The rainiest months in Saint-Lary-Soulan are June, November, May and April, with each month seeing an average of 192 mm of rainfall.