Kata 4

In San Sebastián, Kata 4 is a Basque gastrobar and oyster bar for diners who want a seafood-focused, sociable meal built around oysters, pintxos, seasonal seafood. It suits a relaxed plan centered on sharing plates in a cozy, welcoming atmosphere rather than a highly formal dining experience.

The decision comes down to the kind of meal you want. Kata 4’s identity is as a Basque gastrobar and oyster bar, with signature items including an oyster selection, pintxos, seasonal seafood dishes. The listed price is about $45 per person, the Macarfi 6.5 Food Rating for 2026 gives it a useful quality signal. For planning, note the hours: Monday through Thursday from 8:00 AM to 11:59 PM, Friday from 8:00 AM to 2:30 AM, Saturday from 10:00 AM to 2:30 AM, Sunday closed.

Oysters and shared plates make this a stronger group call than a formal dinner

The oyster-bar identity is the point. If the table is interested in seafood, Kata 4 gives the meal a clear center of gravity through oysters, pintxos, seasonal seafood dishes. The Basque gastrobar format also makes it a natural fit for diners who prefer ordering across the table instead of committing to a more formal restaurant experience.

For groups, the appeal is the communal feel: a lively, cozy, modern setting focused on sharing plates and enjoying high-quality seasonal seafood and pintxos.

This is a seafood-led venue, so it is best for diners who are excited by oysters and seasonal seafood. For a broader San Sebastián plan, use the San Sebastián restaurants guide to map this against other dining options in the city.

Use it for a seafood-focused meal with late Friday-Saturday hours

Kata 4’s hours make it flexible across much of the week. It opens from 8:00 AM to 11:59 PM Monday through Thursday, extends to 2:30 AM on Friday, opens from 10:00 AM to 2:30 AM on Saturday, closes on Sunday. The late Friday and Saturday hours are especially useful if you want oysters, pintxos, or seasonal seafood later in the evening.

The listed price is about $45 per person.

The atmosphere is described as lively, cozy, modern, welcoming.

Who should book, who should choose another San Sebastián meal

Choose Kata 4 if oysters are part of the plan, if the group wants to share, or if you want a Basque gastrobar and oyster bar in San Sebastián. This is also a good fit for food-focused travelers who want Basque seafood in a modern, social format.

If the trip extends beyond restaurants, the San Sebastián hotels, bars, wineries, experiences guides are better tools for building the full itinerary.