Home Celebrate São João in Porto If there’s one festival that defines the soul of Porto, it’s São João. From June 23rd to 24th, the city is transformed into an immensely popular festival, mixing tradition, music, color, and joy. And we’ll tell you why you shouldn’t miss this, one of Portugal’s biggest popular festivals.   The origin of São João   The celebration of St. John has deep roots: it mixes pagan traditions of celebrating the summer solstice with the Christian homage to St. John the Baptist. For centuries, the people of Porto have been reinventing