Weather is probably a major factor when you plan your trip to Brides-les-Bains, but bear 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 temperature of 12°C, while the coldest months are January and February, with an average of -4°C. The rainiest months in Brides-les-Bains are December, May, January and November, with each month seeing an average of 183 mm of rainfall.