When & Where: On December 21, in Constitution Square and nearby streets.

The Santo Tomás Fair, held annually on December 21 in Donostia-San Sebastián, is a cherished tradition celebrating Basque culture and rural life.

This traditional fair, which dates back to the 19th century, originated when Basque farmers (“baserritarras”) were required to pay rent for the land they cultivated. This payment was due on December 21st, and the farmers would come to the city to settle their debts with their best products. To make the trip worthwhile, they would bring their entire harvest to sell to the city dwellers, and thus began the Santo Tomás market. Over time, it has evolved into a lively festival that combines agricultural markets, gastronomy, and cultural events, attracting locals and visitors alike.

The fair takes place in the city’s central Constitution Square and nearby streets, transforming them into a bustling marketplace. Around 200 stalls offer a wide variety of locally produced goods, including fresh vegetables, cheeses, cider, honey, baked goods, and handcrafted items. One of the most iconic products is talo with txistorra, a traditional flatbread filled with spiced sausage, prepared and sold at numerous stands. This simple yet flavorful dish has become synonymous with the Santo Tomás Fair and is a must-try for attendees.

The fair also includes cultural performances, such as traditional Basque music, dances, and sports demonstrations like stone lifting and wood chopping. Artisanal products, ranging from textiles to ceramics, are also available, making it an excellent opportunity for purchasing unique gifts.

A standout attraction of the Santo Tomás Fair is the large Basque pig displayed in Constitution Square, a symbolic nod to the region’s agricultural heritage. Visitors often stop to admire the animal and take photographs, as it embodies the spirit of the fair.