Local festivities are mainly inspired by traditional rituals as religious processions that, apart from their spiritual value, still hold remarkable cultural significance within the local customs and traditions. On 1st June, Corpus Christi Day, the village of Opi is colourfully decorated with carpets and designs made of fresh flowers and petals. On 24-25th June, official celebrations for St. John’s the Baptist and St. Vincent, Opi’s patron saints.
On Christmas Eve night, after the Holy Mass, a big bonfire is lit in the church square in honour of Infant Jesus. On 17th January, St. Antony’s Day, cattle is usually blessed. Particularly popular among tourists in August, the Sagra degli gnocchi, specially prepared by Opi’s housewives and served by Opi’s young people, takes place along the village main street where tables are arranged for guests.