Weather will likely play an important role when you plan your trip to Saint-Sylvain-d'Anjou, and keep 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 temp of 66°F, while the coldest months are February and January with an average of 44°F. Average annual precipitation for Saint-Sylvain-d'Anjou is 27 inches.