Worst air pollution Holmenkollen - Oslo, today and tomorrow
Today (16 July): Air quality in Holmenkollen is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 38.3/100).
Tomorrow (17 July 2026): Air quality in Holmenkollen is fair. NO2 decreases to good; all other pollutants stay as today. Pollution peaks around 5:00 PM (O3: 33.9/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Oslo's Holmenkollen records excellent air quality year-round, elevated above Oslo's urban inversion layer and far from the traffic and wood-burning emissions that accumulate in the valley below during winter. It is consistently one of the lowest-pollution locations in greater Oslo.
Today - 16 July | Pollution peaks at 12:00
AQI:
Fair
38.3/100
PM2.5 (fine particles):
Good
14.9/100
PM10 (coarse particles):
Good
4.4/100
NO2 (nitrogen dioxide):
Fair
37.8/100
O3 (ozone):
Fair
38.3/100
SO2 (sulfur dioxide):
Good
1.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
15.3/100
PM1 (ultrafine particles):
Good
18.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 17:00
AQI:
Fair
33.9/100
PM2.5 (fine particles):
Good
10.3/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Good
19.8/100
O3 (ozone):
Fair
33.9/100
SO2 (sulfur dioxide):
Good
1.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.0/100
PM1 (ultrafine particles):
Good
11.7/100
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Frequently Asked Questions
Is air quality bad in Holmenkollen right now?
On 16 July 2026, overall air quality in Holmenkollen is fair. AQI is the main air quality indicator at 38.3/100. Pollution peaks around 12:00 PM (O3: 38.3/100).
Will air quality be worse tomorrow in Holmenkollen?
On 17 July 2026, air quality conditions in Holmenkollen will be similar to today, with AQI forecast at fair at 33.9/100. Pollution peaks around 5:00 PM (O3: 33.9/100).
When is air pollution at its worst in Holmenkollen?
In Holmenkollen, air quality dips are most noticeable when wood-smoke and still air combine in winter, when temperature inversions over the built-up area trap emissions close to street level. Conditions generally improve again once traffic and weather both calm down. The remainder of the year, Holmenkollen's air quality is typically unremarkable in a good way.
Are air quality levels in Holmenkollen 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.
Want to see air quality forecasts for other cities in Norway?
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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