Worst air pollution Seinäjoki, today and tomorrow
Today (9 August): Air quality in Seinäjoki is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (O3: 28.9/100).
Tomorrow (10 August 2026): Air quality in Seinäjoki is fair. All pollutants stay as today. Pollution peaks around 12:00 AM (O3: 29.2/100). Airmine updates local air quality forecasts four times daily.
Get the full experience in the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
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 - 9 August | Pollution peaks at 23:00
AQI:
Fair
28.9/100
PM2.5 (fine particles):
Good
5.4/100
PM10 (coarse particles):
Good
1.9/100
NO2 (nitrogen dioxide):
Good
6.1/100
O3 (ozone):
Fair
28.9/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.7/100
PM1 (ultrafine particles):
Good
3.8/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 00:00
AQI:
Fair
29.2/100
PM2.5 (fine particles):
Good
6.5/100
PM10 (coarse particles):
Good
2.3/100
NO2 (nitrogen dioxide):
Good
4.4/100
O3 (ozone):
Fair
29.2/100
SO2 (sulfur dioxide):
Good
2.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.6/100
PM1 (ultrafine particles):
Good
7.3/100
Pollen forecast in Seinäjoki
View pollen forecastFrequently Asked Questions
Is air quality bad in Seinäjoki right now?
On 9 August 2026, overall air quality in Seinäjoki is fair. AQI is the main air quality indicator at 28.9/100. Pollution peaks around 11:00 PM (O3: 28.9/100).
Will air quality be worse tomorrow in Seinäjoki?
On 10 August 2026, air quality conditions in Seinäjoki will be similar to today, with AQI forecast at fair at 29.2/100. Pollution peaks around 12:00 AM (O3: 29.2/100).
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.
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.
Want to see air quality forecasts for other cities in Finland?
Check air quality in other popular cities:
Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
Get the full experience in the Airmine app.