What to wear to Nature One: Kastellaun sits at 22°C (72°F) by day and 12°C (54°F) at night in August, on open field, with a moderate chance of rain. That means a light base with one warm layer you can carry, broken-in boots or sturdy trainers, and a bag small enough for the gate rules. The crowd leans rave, techno and neon, so black and functional reads as insider.









