Worst air pollution Wels, today and tomorrow
Today (16 July): Air quality in Wels is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 48.3/100).
Tomorrow (17 July 2026): Air quality in Wels is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 39.0/100). 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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Wels' air quality reflects the Upper Austrian Traun river valley at the Alpine foreland, with vehicle traffic on the A1 motorway and the surrounding industrial and logistics corridor contributing local sources in this major Austrian industrial city. The surrounding Alps create topographic variation, while the Alpine Föhn wind periodically delivers exceptional clean mountain air and the Traun valley provides the primary ventilation corridor on westerly winds throughout the year.
Today - 16 July | Pollution peaks at 17:00
AQI:
Medium
48.3/100
PM2.5 (fine particles):
Good
9.4/100
PM10 (coarse particles):
Good
4.6/100
NO2 (nitrogen dioxide):
Fair
25.1/100
O3 (ozone):
Medium
48.3/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.5/100
PM1 (ultrafine particles):
Good
10.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Fair
39.0/100
PM2.5 (fine particles):
Good
10.8/100
PM10 (coarse particles):
Good
3.9/100
NO2 (nitrogen dioxide):
Fair
27.1/100
O3 (ozone):
Fair
39.0/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.0/100
PM1 (ultrafine particles):
Good
12.7/100
Pollen forecast in Wels
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Wels
Frequently Asked Questions
Is air quality bad in Wels right now?
On 16 July 2026, overall air quality in Wels is fair. NO2 is the main pollutant at 25.1/100. Pollution peaks around 5:00 PM (O3: 48.3/100).
Will air quality be worse tomorrow in Wels?
On 17 July 2026, air quality conditions in Wels will be similar to today, with AQI forecast at fair at 39.0/100. Pollution peaks around 2:00 PM (O3: 39.0/100).
When is air pollution at its worst in Wels?
Winter is the trickiest season for air quality at Wels, as vehicle traffic and light industry accumulate under calm, cold morning inversions. Spring and summer bring stronger, more variable winds and generally better conditions, save for the odd hot-weather ozone peak. Autumn is typically another comparatively mild period.
Are air quality levels in Wels 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.
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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