Płock hosts 1 festival in this guide: Audioriver.
Płock has 1 festival in this guide. They run in July, and festival-day temperatures range from 25°C (77°F) to 25°C (77°F), with nights down to 14°C (57°F). That range is the reason there is no single "Płock festival outfit". The answer changes by month and by site.
Conditions are moderate across the board, so the day-to-night temperature drop is the thing to plan for rather than the weather itself.
The ground matters as much as the sky. Every festival here is on beach, which puts flat sandals you can rinse, plus trainers for the night stages at the top of the list for most of these events. 1 of the 1 has camping on site, so outfits have to survive living in a bag on the ground for several days.
Stylistically the crowd here leans techno, beach, underground and camping. Audioriver is the largest of them at around 30,000 people, and it sets the tone the smaller ones react to. None of that is a dress code. It is what you will see, which is worth knowing if you would rather blend in or deliberately not.
