The patron saint of Pontboset is Saint Gratus, celebrated on 7 September in the parish church dedicated to him, located at the centre of the village.
The small municipality in the Aosta Valley, with fewer than two hundred inhabitants, also preserves the sanctuary of Retempio, a place of local devotion set amid the mountain landscape of the lower Aosta Valley. The village's religious life is documented by local studies, including a publication dedicated to Don Germano Bois, parish priest of Pontboset for sixty years.
