The Night Porto Goes Beautifully Mad
On the evening of June 23rd, the city of Porto undergoes a transformation. Streets fill with thousands of people carrying plastic hammers, leeks, and balloons. Grills appear on every corner. Fireworks erupt over the Douro River. Music echoes through every neighbourhood. This is the Festa de São João — the Feast of Saint John — and it is arguably Portugal's most joyful, most chaotic, and most beloved celebration.
While São João is celebrated across Portugal, Porto's version is in a category of its own. The city claims Saint John the Baptist as its patron, and on his feast eve, the entire population spills into the streets for a night that lasts until dawn.
The Origins of the Festival
The roots of São João blend Christian tradition with much older midsummer celebrations. The feast of John the Baptist falls on June 24th — close to the summer solstice — and many of the festival's customs echo pre-Christian traditions around fire, fertility, and the turning of the seasons.
In Porto, the festival took on its distinctive popular character over centuries, absorbing the traditions of working-class neighborhoods and gradually growing into the city-wide celebration it is today. After years of being somewhat subdued during the mid-20th century, São João was revived and expanded from the 1980s onward into the enormous event it has become.
The Traditions: Hammers, Leeks, and Fire
São João in Porto has a set of wonderfully eccentric customs:
The Plastic Hammer
The defining symbol of Porto's São João. Squeaky plastic hammers are sold everywhere in the weeks before the festival, and on the night itself, everyone — children, grandparents, tourists — gently (and sometimes not so gently) hits strangers on the head with them. The origins are unclear but the tradition is universal and surprisingly good-natured.
The Alho Porro (Leek)
In some neighbourhoods, people carry leeks or garlic stalks as a traditional alternative to the hammer. Tickling strangers with a leek was apparently a time-honoured way of showing affection. The hammer has largely replaced the leek, but you'll still see them.
The Balloons
Sky lanterns — small paper hot-air balloons with a flame inside — are released in enormous numbers throughout the night, filling the Porto sky with drifting lights. While environmental concerns have led to some restrictions in recent years, the sight of hundreds of lanterns floating over the Douro remains magical.
The Sardines
São João falls during sardine season, and grilled sardines are the food of the festival. Portable grills line every street, smoke fills the air, and the scent of sardines is inseparable from the night. Eat them the traditional way: on a slice of cornbread, with a cold beer.
The Bonfire
Neighbourhood bonfires — fogueiras — are lit across the city. Jumping over a bonfire three times is said to bring good luck. In the old tradition, couples would jump together to seal their relationship.
Where to Experience São João
- Miradouro da Vitória: One of the best viewpoints for watching fireworks over the Douro at midnight
- Bonfim neighbourhood: Known for particularly lively street parties and a strong local atmosphere
- Ribeira waterfront: Packed but spectacular — the riverfront is transformed into a continuous party
- Fontainhas: A more local, quieter version of the celebrations with neighbourhood character
Practical Tips for Visitors
- Book accommodation months in advance — São João is one of Porto's busiest nights and hotels fill up quickly
- Dress casually and in clothes you don't mind getting hit with a leek or bumping against sardine smoke
- The night starts after 10 PM and runs until 6 AM — pace yourself
- Buy your hammer early — street vendors sell them for a few euros and it is absolutely expected that you participate
- Public transport runs all night on São João — plan your route home in advance
Beyond June 23rd: São João Weekend
The official festivities run from June 23rd into June 24th, but in reality the celebrations extend across a long weekend, with concerts, processions, and cultural events throughout. The Cortejo de Honra — a formal procession on June 24th — is a more sober counterpart to the night before's revelry.
São João is one of those experiences that cannot be fully prepared for in advance. The best advice is to arrive with an open spirit, a hammer in hand, and nowhere to be until morning.