The patron of Allein is Saint Stephen, celebrated on 26 December in the church that bears his name. The village's religious events are the patronal feast and the procession in honour of Saints Peter and Paul.
In the last week of August, since 1993, comes instead the Fëta di Trifolle, the feast devoted to potato soup, once the basic food of the farmers. The village is also home to the Meison di carnaval de la Coumba Freida, the house of the valley's carnival.
