The patron saint of Rosarno is Saint John the Baptist, celebrated on 24 June in the Church of San Giovanni Battista.
April hosts the Sagra della zagara, showcasing various products from citrus fruit to finished goods, while August brings the Sagra della Massaia, the National Amateur Theatre Festival and the Palio dei Rioni, with its historical parade. The town also holds the Medma Archaeological Museum and Park and the Amphitheatre of Rosarno.