Worst air pollution Östersund, today and tomorrow
Today (30 August): Air quality in Östersund is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 24.4/100).
Tomorrow (31 August 2026): Air quality in Östersund is good. AQI improves to good; O3 decreases to good; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 19.5/100). Airmine updates local air quality forecasts four times daily.
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Air quality conditions in Östersund are usually good, occasionally interrupted by short-lived local spikes. The presence of winter sports and forestry in the area contributes a modest but steady share of local emissions, compounded by traffic on the main routes through town. Air currents around the shores of Lake Storsjön tend to clear pollutants before they can accumulate for long. These combined factors give Östersund air quality that most residents would consider unremarkable in a good way.
Today - 30 August | Pollution peaks at 15:00
AQI:
Fair
24.4/100
PM2.5 (fine particles):
Good
8.8/100
PM10 (coarse particles):
Good
2.5/100
NO2 (nitrogen dioxide):
Good
4.6/100
O3 (ozone):
Fair
24.4/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.8/100
PM1 (ultrafine particles):
Good
10.8/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 14:00
AQI:
Good
19.5/100
PM2.5 (fine particles):
Good
1.0/100
PM10 (coarse particles):
Good
0.3/100
NO2 (nitrogen dioxide):
Good
4.5/100
O3 (ozone):
Good
19.5/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
1.2/100
Pollen forecast in Östersund
View pollen forecastFrequently Asked Questions
Is air quality bad in Östersund right now?
On 30 August 2026, overall air quality in Östersund is fair. AQI is the main air quality indicator at 24.4/100. Pollution peaks around 3:00 PM (O3: 24.4/100).
Will air quality be worse tomorrow in Östersund?
On 31 August 2026, air quality conditions in Östersund will be better than today, with AQI forecast at good at 19.5/100. Pollution peaks around 2:00 PM (O3: 19.5/100).
When is air pollution at its worst in Östersund?
Does air quality in Östersund vary by season? The darkest winter months tend to bring the year's weakest readings, since calm, cold air allows pollutants from heating and traffic to accumulate rather than disperse. Air quality tends to recover through spring as milder, windier conditions replace the still winter air masses. The year's most consistently good air usually falls in summer, when heating season has ended and ventilation improves. Conditions gradually shift through autumn, with cooling temperatures reviving wood-burning and calmer nights allowing brief local build-ups. This seasonal swing is typically more marked here than further south, reflecting the region's longer, colder winter.
Are air quality levels in Östersund 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 30 August 2026 at 14:32 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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