What to wear to BottleRock Napa Valley: Napa sits at 26°C (79°F) by day and 11°C (52°F) at night in May, on city park, 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 elegant, wine and boho, so anything that survives the day reads as right.
| Typical daytime high | 26°C (79°F) |
|---|---|
| Typical night low | 11°C (52°F) |
| Day–night swing | 15°C (27°F) |
| Rain risk | Low |
| Ground | Grass and gravel paths |
| Sun exposure | High, little natural shade |
The 15-degree swing is the thing to solve. The outfit you choose at 3pm has to still work at 2am, and layers you can carry beat a second trip to the car or tent.
Everything below follows from those numbers.