What to wear to Neopop Festival: Viana do Castelo sits at 26°C (79°F) by day and 17°C (63°F) at night in August, on beach, with a low chance of rain. That means a light base with one warm layer you can carry, flat sandals you can rinse, with trainers for the night stages, and a bag small enough for the gate rules. The crowd leans techno, underground and beach, so black and functional reads as insider.
Women's outfits at Neopop Festival have to clear the same three hurdles as everyone else's. 26°C (79°F) by day, 17°C (63°F) at night, beach underfoot, with more options for solving them.
The dominant aesthetics at Neopop Festival are techno black, underground, beachwear and industrial. 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.
This is a function-first crowd. Black, utility and good shoes read as insider; heavy glitter and fancy dress read as tourist. Nobody is stopping you, but you will feel it.
What people actually wear: one good layer over a light base, because the temperature halves after sunset; the same jacket every day, because it lives in the tent and does everything.