The patron saint of Monte San Giovanni Campano is Saint Thomas Aquinas, celebrated on 7 March.
On Low Sunday, the feast of the Madonna del Suffragio is celebrated, marked by a grand procession and an imposing goods and livestock fair, ending after seven days of Marian festivities on the day known as the Ottavario. The hamlet of Colli also holds the Infiorata flower carpet. The town holds the Luigi Centra Museum of Modern Art and the Municipal Theatre.