What to wear to Sónar: Barcelona sits at 26°C (79°F) by day and 19°C (66°F) at night in June, on industrial site, with a low 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 techno, underground and cyber, so black and functional reads as insider.
| Typical daytime high | 26°C (79°F) |
|---|---|
| Typical night low | 19°C (66°F) |
| Day–night swing | 7°C (13°F) |
| Rain risk | Low |
| Ground | Concrete, metal grating and gravel |
| Sun exposure | High, little natural shade |
Everything below follows from those numbers.