Worst air pollution Frankfurt, today and tomorrow
Today (20 September): Air quality in Frankfurt is fair. AQI, PM2.5, NO2, and PM1 are fair; PM10, O3, SO2, CO, and HCHO are good. Pollution peaks around 3:00 PM (NO2: 35.5/100).
Tomorrow (21 September 2026): Air quality in Frankfurt is moderate. AQI worsens to moderate; NO2 increases to moderate; PM1 increases to moderate; all other pollutants stay as today. Pollution peaks around 9:00 PM (NO2: 51.2/100). Airmine updates local air quality forecasts four times daily.
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Frankfurt's air quality is shaped by its position as Europe's busiest cargo airport hub and a major Autobahn interchange, with aviation and heavy goods traffic combining in the Rhine-Main basin. The Taunus hills to the north and Odenwald to the south create partial topographic enclosure, while the Main river corridor provides the main ventilation pathway.
Today - 20 September | Pollution peaks at 15:00
AQI:
Fair
35.5/100
PM2.5 (fine particles):
Fair
23.2/100
PM10 (coarse particles):
Good
15.9/100
NO2 (nitrogen dioxide):
Fair
35.5/100
O3 (ozone):
Good
17.8/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.7/100
HCHO (formaldehyde):
Good
3.6/100
PM1 (ultrafine particles):
Fair
23.3/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 21:00
AQI:
Moderate
51.2/100
PM2.5 (fine particles):
Fair
31.8/100
PM10 (coarse particles):
Good
19.6/100
NO2 (nitrogen dioxide):
Moderate
51.2/100
O3 (ozone):
Good
19.9/100
SO2 (sulfur dioxide):
Good
2.6/100
CO (carbon monoxide):
Good
1.1/100
HCHO (formaldehyde):
Good
3.4/100
PM1 (ultrafine particles):
Moderate
40.1/100
Pollen forecast in Frankfurt
View pollen forecastFrequently Asked Questions
Is air quality bad in Frankfurt right now?
On 20 September 2026, overall air quality in Frankfurt is fair. AQI is the main air quality indicator at 35.5/100. Pollution peaks around 3:00 PM (NO2: 35.5/100).
Will air quality be worse tomorrow in Frankfurt?
On 21 September 2026, air quality conditions in Frankfurt will be worse than today, with AQI forecast at moderate at 51.2/100. Pollution peaks around 9:00 PM (NO2: 51.2/100).
When is air pollution at its worst in Frankfurt?
Reduced air quality in Frankfurt is most likely when chestnut, plane, and linden pollen peaks, or on windless summer days when pollutants accumulate nearby; everyday driving through the area contributes a modest amount. Ragweed is generally a minor factor here compared with warmer parts of Germany. Wind and rain both help clear the air noticeably here.
Are air quality levels in Frankfurt 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: 20 September 2026 at 14:33 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.
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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