Weather is probably a major factor when you plan your trip to Saint-Bonnet-en-Champsaur, 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 17°C, while the coldest months are January and February, with an average of 0°C. Average annual precipitation for Saint-Bonnet-en-Champsaur is 957 mm.