Worst air pollution Graz, today and tomorrow
Today (9 August): Air quality in Graz is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 44.6/100).
Tomorrow (10 August 2026): Air quality in Graz is fair. NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 51.3/100). Airmine updates local air quality forecasts four times daily.
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Graz's air quality faces Austria's most persistent urban challenge, with the city's enclosed Mur valley basin surrounded by the Styrian Alps and the Dachstein plateau creating a severe topographic pollution trap. Diesel traffic on the A2 South Autobahn and residential wood burning generate elevated PM2.5 and NO₂, while winter temperature inversions in the valley can produce multi-day pollution episodes making Graz consistently Austria's most air quality-challenged major city.
Today - 9 August | Pollution peaks at 14:00
AQI:
Medium
44.6/100
PM2.5 (fine particles):
Good
11.5/100
PM10 (coarse particles):
Good
3.2/100
NO2 (nitrogen dioxide):
Good
17.0/100
O3 (ozone):
Medium
44.6/100
SO2 (sulfur dioxide):
Good
3.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.0/100
PM1 (ultrafine particles):
Good
15.1/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 12:00
AQI:
Medium
51.3/100
PM2.5 (fine particles):
Good
11.5/100
PM10 (coarse particles):
Good
5.4/100
NO2 (nitrogen dioxide):
Fair
25.0/100
O3 (ozone):
Medium
51.3/100
SO2 (sulfur dioxide):
Good
2.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
14.8/100
PM1 (ultrafine particles):
Good
12.5/100
Pollen forecast in Graz
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Frequently Asked Questions
Is air quality bad in Graz right now?
On 9 August 2026, overall air quality in Graz is medium. AQI is the main air quality indicator at 44.6/100. Pollution peaks around 2:00 PM (O3: 44.6/100).
Will air quality be worse tomorrow in Graz?
On 10 August 2026, air quality conditions in Graz will be worse than today, with NO2 forecast at fair at 25.0/100. Pollution peaks around 12:00 PM (O3: 51.3/100).
When is air pollution at its worst in Graz?
The poorest air quality at Graz tends to occur during still winter conditions, as vehicle traffic and legacy industry become trapped by the surrounding hills under a basin inversion. Conditions improve through spring and summer as winds return, aside from occasional ozone spikes during prolonged heat. Autumn is typically calm and comparatively clear.
Are air quality levels in Graz 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: 9 August 2026 at 20:27 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.
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.
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