Worst air pollution Roskilde Festival (Festivalplassen) - Roskilde, today and tomorrow
Today (14 July): Air quality in Roskilde Festival (Festivalplassen) is fair. O3 and PM1 are fair; AQI and NO2 are medium; PM2.5, PM10, SO2, CO, and HCHO are good. Pollution peaks around 4:00 AM (NO2: 51.8/100).
Tomorrow (15 July 2026): Air quality in Roskilde Festival (Festivalplassen) is fair. PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 45.0/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Roskilde's air quality is generally good by Danish standards, with the Roskilde Fjord's consistent Kattegat breezes providing reliable maritime ventilation across this historic Viking capital. Vehicle traffic on the E20 motorway and the Roskilde Festival's annual concentrated event traffic are the primary local sources, while the flat Jutland-Zealand agricultural plain and the fjord's open geometry generally maintain Roskilde among Denmark's more moderate urban environments throughout most of the year.
Today - 14 July | Pollution peaks at 04:00
AQI:
Medium
51.8/100
PM2.5 (fine particles):
Good
16.2/100
PM10 (coarse particles):
Good
4.6/100
NO2 (nitrogen dioxide):
Medium
51.8/100
O3 (ozone):
Fair
27.7/100
SO2 (sulfur dioxide):
Good
2.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.1/100
PM1 (ultrafine particles):
Fair
21.3/100
Levels show the poorest local air quality during the day
Tomorrow - 15 July | Pollution peaks at 23:00
AQI:
Medium
45.0/100
PM2.5 (fine particles):
Good
7.8/100
PM10 (coarse particles):
Good
2.5/100
NO2 (nitrogen dioxide):
Medium
45.0/100
O3 (ozone):
Fair
30.1/100
SO2 (sulfur dioxide):
Good
2.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.5/100
PM1 (ultrafine particles):
Good
8.3/100
Other Landmarks in Roskilde
Frequently Asked Questions
Is air quality bad in Roskilde Festival (Festivalplassen) right now?
On 14 July 2026, overall air quality in Roskilde Festival (Festivalplassen) is fair. O3 is the main pollutant at 27.7/100. Pollution peaks around 4:00 AM (NO2: 51.8/100).
Will air quality be worse tomorrow in Roskilde Festival (Festivalplassen)?
On 15 July 2026, air quality conditions in Roskilde Festival (Festivalplassen) will be similar to today, with O3 forecast at fair at 30.1/100. Pollution peaks around 11:00 PM (NO2: 45.0/100).
When is air pollution at its worst in Roskilde Festival (Festivalplassen)?
Roskilde Festival's air quality dips are almost entirely tied to the festival period itself, when concentrated traffic and dust from tens of thousands of trampled-grass campsite pitches replace the fjord's usual Kattegat ventilation as the dominant factor. Outside the festival window, conditions revert to the fjord's typical moderate baseline.
Are air quality levels in Roskilde Festival (Festivalplassen) based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 14 July 2026 at 10:27 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app