The patron saint of Mathi is Saint Maurus, celebrated on 15 January in the Church of San Mauro Abate: the feast features a religious procession in which the patron's statue is carried through the town's streets, accompanied by songs and prayers.
The Mathi Carnival, one of the largest in the area, was suspended in 2013 for lack of funds and revived in 2017 with a new organising committee. The town's calendar also includes the Chestnut Festival, the Summer Concert, the Saint Aloysius Concert and the Christmas Concert. The municipal territory also holds the Chapel of San Rocco and the Park of Villa Bosso-Ahlstrom.
