The patron of Arnad is Saint Martin of Tours, celebrated on 11 November in the church that bears his name.
In the hamlet of Machaby, instead, stands the sanctuary of Notre-Dame-des-Neiges, where the feast of Our Lady of the Snows is celebrated on 5 August. And the last weekend of August is time for the Féhta dou lar, the Lard d'Arnad festival. Above the town stands the lower castle of Arnad, also called Castello Vallaise.
