The patron of Castel di Ieri is San Donato the martyr, celebrated on 3 September.
The Festa della Madonna di Pietrabona includes a pilgrimage to the country church and the so-called 'offerta' (offering), a moment when mothers lift their children up toward the statue; the procession starts from the parish church of the village and touches the Chiesa di Santa Maria Assunta in Cielo, the Chiesa della Madonna del Soccorso and the Santuario di Pietrabona. In the second half of August 'Castel di Ieri Rock Nights', a rock music event born in 2002, is usually held.
