The patron of Casape is San Pietro Apostolo (Saint Peter the Apostle), celebrated on 18 August; the municipality holds the Chiesa Parrocchiale di San Pietro Apostolo.
Solemn religious processions in costume wind through the streets of Casape on the occasion of the Representation of the Passion of Christ on Good Friday, of Corpus Domini (with the infiorata repeated during the octave), of 14 August (with a solemn bow), of 17 August, the feast of Maria Custodia nostra, and of 18 August, the feast of San Pietro.