The patron saint of Segni is Saint Bruno, celebrated on 18 July: it is the town's most deeply felt patronal feast and the richest in events.
During the feast period, the «Palio di S. Bruno» is held, organised by the local equestrian group, with tests of speed and skill on horseback. On 13 December, the feast of Saint Lucy is an occasion for leisure for the old town centre's community, with a fair and a holiday. The town also holds the Porta Saracena and the Concathedral of Santa Maria Assunta.