Worst air pollution Spiez, today and tomorrow
Today (16 July): Air quality in Spiez 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: 40.1/100).
Tomorrow (17 July 2026): Air quality in Spiez is fair. AQI worsens to fair; NO2 increases to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 3:00 PM (O3: 34.4/100). 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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Spiez's air quality benefits from its Lake Thun peninsula position in the Bernese Oberland, with lake breezes providing reliable ventilation. Vehicle traffic and seasonal tourism are the primary local emission sources.
Today - 16 July | Pollution peaks at 23:00
AQI:
Medium
40.1/100
PM2.5 (fine particles):
Good
10.8/100
PM10 (coarse particles):
Good
5.7/100
NO2 (nitrogen dioxide):
Medium
40.1/100
O3 (ozone):
Medium
40.0/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.2/100
PM1 (ultrafine particles):
Good
10.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Fair
34.4/100
PM2.5 (fine particles):
Good
8.8/100
PM10 (coarse particles):
Good
6.3/100
NO2 (nitrogen dioxide):
Fair
34.2/100
O3 (ozone):
Fair
34.4/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.6/100
PM1 (ultrafine particles):
Good
9.6/100
Pollen forecast in Spiez
View pollen forecastFrequently Asked Questions
Is air quality bad in Spiez right now?
On 16 July 2026, overall air quality in Spiez is medium. AQI is the main air quality indicator at 40.1/100. Pollution peaks around 11:00 PM (NO2: 40.1/100).
Will air quality be worse tomorrow in Spiez?
On 17 July 2026, air quality conditions in Spiez will be worse than today, with AQI forecast at fair at 34.4/100. Pollution peaks around 3:00 PM (O3: 34.4/100).
When is air pollution at its worst in Spiez?
Calm winter conditions are when Spiez's air quality suffers most, with vehicle traffic and administrative and commuter activity settling into the valley instead of clearing with the wind as usual. Warmer months bring noticeably better airflow through the valley, with only the occasional summer ozone spike breaking an otherwise clean pattern through spring and autumn.
Are air quality levels in Spiez 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