Weather is probably a major factor when you plan your trip to Brides-les-Bains, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and August with an average temp of 54°F, while the coldest months are January and February with an average of 25°F. The rainiest months in Brides-les-Bains are December, May, January, and November, with each month seeing an average of 7 inches of rainfall.