🇩🇰 Refshaleøen, Copenhagen, Denmark
What to Pack for O Days 2026
Built from about 15 years of weather records at the site: typical highs of 21°C, overnight lows of 15°C and around 2.2mm of rain per day. O Days has no campsite, so this is a day-bag list.
The weather you're packing for
| Day | High | Low | Rain |
|---|---|---|---|
| Wed 5 Aug | 21°C | 15°C | 1.4 mm |
| Thu 6 Aug | 21°C | 15°C | 1.8 mm |
| Fri 7 Aug | 21°C | 15°C | 3.3 mm |
Long-run averages for each festival day, not a forecast. Check the O Days forecast page in the week before you travel.
Always in the bag
- Refillable water bottle — sealed or empty so it gets through the gate.
- Sunscreen SPF 50 — even a cloudy festival day is six hours outdoors.
- Power bank — your phone is your ticket, your map and your group chat.
- Earplugs — for the front rail, and for the ride home afterwards.
- More socks than days.
Sun and heat
Highs average 21°C, so heat is rarely the main problem — but the warmest day still reaches about 21°C and shade is limited at most sites.
- A wide-brim hat and sunglasses beat a cap for full-day sets.
- Loose, light-coloured long sleeves cover more skin and feel cooler than a vest.
Rain kit — don't skip this
Rain falls on roughly 100% of O Days days, averaging 2.2mm a day and about 6.5mm across the main days.
- Waterproof shoes you can walk and dance in, and dry socks waiting at home.
- A real rain jacket and a cheap poncho — the poncho covers your bag in a crowd.
- A small folding bag for the wet layer once the shower passes.
- A dry bag or zip bag for phone, power bank and travel card.
Evening layers
Evening lows average 15°C, with the coldest festival night typically near 15°C (Thu 6 Aug). Bring one warm layer you can tie round your waist all day; it earns its place after midnight.
- A layer that packs down small enough to carry from doors open to last set.
- Comfortable shoes for the walk or the night bus home.
- A hoodie you don't mind losing.
Why the O Days site matters
Refshaleøen is flat, paved and completely exposed to the harbour, so wind is the factor most people underestimate — a 22°C afternoon can feel several degrees cooler once the breeze comes off the water, and evenings cool quickly after sunset. The upside is drainage: the hard industrial ground means showers leave puddles, not mud, and the hangars and covered bars give you somewhere to wait out a passing front. Pack a windproof layer for the night and sunscreen for the shadeless daytime stretches.