The patron saints of Arco are Saints Anne and Joachim, celebrated on 26 July; co-patron is Saint Bernardino of Siena, celebrated on 20 May.
Carnival week brings the Habsburg Carnival, while in March the Trofeo Città di Arco Beppe Viola is run. In spring, the Pasqua Musicale Arcense festival offers sacred and secular classical music concerts in historic halls and buildings of the town. The municipal territory also holds the Fontana del Mosè and the Convent of the Madonna delle Grazie.