Worst air pollution Schwyz, today and tomorrow
Today (16 July): Air quality in Schwyz is medium. AQI, NO2, and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (NO2: 42.7/100).
Tomorrow (17 July 2026): Air quality in Schwyz is fair. O3 increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 1:00 AM (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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Schwyz's air quality benefits from its Alpine foothill position between Lake Lucerne and the Mythen peaks, with vehicle traffic on regional roads the primary local source amid generally clean mountain air.
Today - 16 July | Pollution peaks at 23:00
AQI:
Medium
42.7/100
PM2.5 (fine particles):
Good
16.2/100
PM10 (coarse particles):
Good
6.5/100
NO2 (nitrogen dioxide):
Medium
42.7/100
O3 (ozone):
Medium
40.4/100
SO2 (sulfur dioxide):
Good
1.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.3/100
PM1 (ultrafine particles):
Good
18.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 01:00
AQI:
Medium
45.0/100
PM2.5 (fine particles):
Good
18.1/100
PM10 (coarse particles):
Good
6.9/100
NO2 (nitrogen dioxide):
Medium
45.0/100
O3 (ozone):
Fair
33.2/100
SO2 (sulfur dioxide):
Good
2.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.7/100
PM1 (ultrafine particles):
Fair
20.8/100
Pollen forecast in Schwyz
View pollen forecastFrequently Asked Questions
Is air quality bad in Schwyz right now?
On 16 July 2026, overall air quality in Schwyz is medium. AQI is the main air quality indicator at 42.7/100. Pollution peaks around 11:00 PM (NO2: 42.7/100).
Will air quality be worse tomorrow in Schwyz?
On 17 July 2026, air quality conditions in Schwyz will be worse than today, with O3 forecast at fair at 33.2/100. Pollution peaks around 1:00 AM (NO2: 45.0/100).
When is air pollution at its worst in Schwyz?
Schwyz sees its worst air quality on windless winter days, when vehicle traffic and lake-season tourism pool near the water under the still-air layering typical of this Alpine-foothill lake basin. The rest of the year sees much better conditions around this lake basin, with summer's ozone spikes limited to the hottest, stillest days.
Are air quality levels in Schwyz 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 Switzerland?
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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