What to wear to Medusa Festival: Cullera sits at 31°C (88°F) by day and 23°C (73°F) at night in August, on beach, with a low chance of rain. That means loose natural fabrics and real sun protection, flat sandals you can rinse, with trainers for the night stages, and a bag small enough for the gate rules. The crowd leans rave, beach and neon, so anything that survives the day reads as right.
Men's festival dressing at Medusa Festival comes down to three decisions: how much you can take off when it hits 31°C (88°F), what you put back on at 23°C (73°F), and whether your shoes can take beach for 4 days.
The dominant aesthetics at Medusa Festival are rave wear, beachwear, neon and EDM festival wear. That is the visual language of the site, the stages, the merch, the crowd photos, and outfits that speak it look intentional rather than borrowed.
There is no enforced dress code. What the crowd rewards is a look that survives 4 days of beach without you having to protect it.
What people actually wear: swimwear as a base layer, a sarong or shirt over it, and shoes that can be rinsed; the same jacket every day, because it lives in the tent and does everything; something identifiable, a colour, a hat, a flag, so your group can find you in a crowd of that size.