Weather is probably a major factor when you plan your trip to Saint-Gervais-la-Foret, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually August and July, with an average temperature of 19°C, while the coldest months are January and February, with an average of 6°C. Average annual precipitation for Saint-Gervais-la-Foret is 728 mm.