🇩🇰 Refshaleøen, Copenhagen, Denmark
Does It Rain at O Days?
Across roughly 15 years of records at the site, rain falls on about 100% of O Days days, averaging 2.2mm a day.
The short answer
100%
of days see 1mm+
2.2 mm
average per day
High
wet-ground risk
Wet days are common enough that waterproof shoes and a real rain jacket are a sensible default rather than an over-reaction.
Rain day by day
| Day | Rain | High | Weather score |
|---|---|---|---|
| Wed 5 Aug | 1.4 mm | 21°C | 97% |
| Thu 6 Aug | 1.8 mm | 21°C | 96% |
| Fri 7 Aug | 3.3 mm | 21°C | 91% |
The wettest festival day on average is Fri 7 Aug at 3.3mm; the driest is Wed 5 Aug at 1.4mm. Over the main days that adds up to roughly 6.5mm.
What rain actually does to O Days
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.
If the forecast turns wet
- Waterproof shoes over trainers — you'll be on wet pavement and grass all day.
- Rain jacket for walking, poncho for standing in a crowd with a backpack.
- No campsite here, so the fix for a bad hour is indoors, under cover, or an early trip home and back.
- A dry bag for phone, power bank and tickets, and dry clothes waiting at home.
How we know
These numbers come from the Open-Meteo historical reanalysis at the festival's coordinates, averaged day by day over about 15 years. They describe a typical edition, not the one you're going to — for the live picture, the O Days forecast page updates twice a day once the event is inside the forecast window.