Calendar / Open'er Festival
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Music & Culture Festivals in Gdynia
Open'er Festival
Jun 30 – Jul 3, 2027ExpectedOpen'er Festival 2027
Run by Alter Art, with published dates and a real program.
Dates & details verified against: Official event site ↗
Why go
Open'er is Poland's biggest international music festival and one of the largest in Central Europe, a four-day event on the flat expanse of the Gdynia-Kosakowo airfield with the Baltic coast a short ride away. Founded in 2002 by the promoter Alter Art, it has grown into a multi-stage giant that pulls the year's headline acts across pop, rock, hip-hop and electronic music: the 2026 edition alone ran Florence and the Machine, The Cure, Nick Cave and the Bad Seeds, Calvin Harris and Jennie. Beyond the music there are fashion, film and art zones and a big on-site camp, and the seaside setting and famously friendly crowd make it as much a summer gathering as a concert. For a festival traveler it is the anchor of the Polish summer.
When it runs
Held once a year over four days in early July at the Gdynia-Kosakowo airfield, organized by the promoter Alter Art. The 2026 edition ran 1 to 4 July 2026; the next edition is expected in early July 2027.
- Jun 30 – Jul 3, 2027ExpectedOpen'er Festival 2027
- Ran Jul 1–4, 2026Open'er Festival 2026
Dates read confirmed where the organizer has published them, and expected where we've projected the recurrence. Always verify with the organizer before booking.
These dates aren't confirmed yet.
Jun 30 – Jul 3, 2027 is our best read from the pattern, not an announcement. Leave your email and we'll message you the day the real dates land. One email, that's the whole deal.
What to expect
Open'er is held once a year over four days in early July at the Kosakowo airfield near Gdynia. It is a large outdoor camping festival, warm but with the chance of Baltic rain and mud, so bring wet-weather gear. Tickets, especially four-day and camping passes, go on sale months ahead and the popular tiers sell out. The wider Tricity fills up in festival week, so sort accommodation or camping early.
Getting there & around
Gdynia is reached by train or road from Gdansk airport and the wider Tricity in under an hour, with shuttle and public transport links to the Kosakowo festival site. Most festival-goers use the on-site campsite or stay across Gdynia, Sopot and Gdansk and commute in. Buy four-day and camping tickets well in advance through the official site, and plan transport back into the city after late-night headliners.
Where it happens
Gdynia, Poland.
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