Worst air pollution Seinäjoki, today and tomorrow
Today (16 July): Air quality in Seinäjoki is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 19.4/100).
Tomorrow (17 July 2026): Air quality in Seinäjoki is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 6:00 PM (O3: 23.8/100). 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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Seinäjoki's air quality is generally good by European standards, with the flat southern Ostrobothnia agricultural plain and consistent Baltic Sea westerlies providing reliable ventilation across this central Finnish agricultural and services city. Vehicle traffic on the E63 motorway and surrounding food processing and logistics industry contribute local sources, while wood-burning stoves during the long cold winters are the primary seasonal PM2.5 concern throughout the year.
Today - 16 July | Pollution peaks at 15:00
AQI:
Good
19.4/100
PM2.5 (fine particles):
Good
8.0/100
PM10 (coarse particles):
Good
2.7/100
NO2 (nitrogen dioxide):
Good
9.1/100
O3 (ozone):
Good
19.4/100
SO2 (sulfur dioxide):
Good
1.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.5/100
PM1 (ultrafine particles):
Good
7.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 18:00
AQI:
Fair
23.8/100
PM2.5 (fine particles):
Good
8.6/100
PM10 (coarse particles):
Good
2.6/100
NO2 (nitrogen dioxide):
Good
5.4/100
O3 (ozone):
Fair
23.8/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.6/100
PM1 (ultrafine particles):
Good
9.1/100
Pollen forecast in Seinäjoki
View pollen forecastFrequently Asked Questions
Is air quality bad in Seinäjoki right now?
On 16 July 2026, overall air quality in Seinäjoki is good. AQI is the main air quality indicator at 19.4/100. Pollution peaks around 3:00 PM (O3: 19.4/100).
Will air quality be worse tomorrow in Seinäjoki?
On 17 July 2026, air quality conditions in Seinäjoki will be worse than today, with AQI forecast at fair at 23.8/100. Pollution peaks around 6:00 PM (O3: 23.8/100).
When is air pollution at its worst in Seinäjoki?
People in Seinäjoki tend to notice reduced air quality when birch and alder pollen peaks, or because of vehicle traffic on the E63 motorway and neighbouring food processing and logistics industry; a change of season or a spell of wind usually clears things up again.
Are air quality levels in Seinäjoki 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 Finland?
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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