The patroness of Arquà Petrarca is the Santissima Trinità, celebrated on the first Sunday after Pentecost; the village holds the Oratorio Santissima Trinità.
The calendar includes the Festa del Mandorlo (Almond Tree Festival, first Sunday of March), the Notte romantica (third Saturday of June), the Notte poetica in homage to Francesco Petrarca (third Saturday of July), Calici ad Arquà (last weekend of July), the Festa delle Giuggiole (Jujube Festival, first and second Sunday of October), the Festa dell'Olio Novello (New Oil Festival, third Sunday of November) and the Christmas markets (8 December). The municipality also holds the Chiesa di Santa Maria Assunta, the Casa del Petrarca and Laghetto della Costa.
