What to wear to San Fermín: Pamplona sits at 27°C (81°F) by day and 14°C (57°F) at night in July, on city streets, with a moderate chance of rain. That means a light base with one warm layer you can carry, cushioned trainers or a low boot, and a bag small enough for the gate rules. The crowd leans costume, party and parade, so a full costume is the norm rather than the exception.
This is the 2026 outfit guide for San Fermín. The festival runs in July in Pamplona, Spain, and the conditions barely move year to year: 27°C (81°F) by day, 14°C (57°F) at night, moderate rain risk on city streets. What changes is what the crowd is wearing.
Accessories carry more of the look: gems, chrome, layered jewellery and statement eyewear do the work that a whole outfit used to. Here that plays out mostly in the layer you carry rather than the one you start in.
The twelve looks below are ranked for 2026: weather first, then how well each one reads against this festival's costume / party crowd. Every piece links through to somewhere you can buy it.