Worst air pollution Helsinki, today and tomorrow
Today (16 July): Air quality in Helsinki is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 18.9/100).
Tomorrow (17 July 2026): Air quality in Helsinki is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 20.7/100). 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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Helsinki's air quality is excellent by European standards, benefiting from clean Baltic Sea and Arctic airflows that dominate conditions throughout most of the year. The primary concerns are road dust from studded winter tyres contributing elevated PM10 in spring, and occasional wood-burning episodes in residential areas during cold winter periods elevating localised PM2.5.
Today - 16 July | Pollution peaks at 15:00
AQI:
Good
18.9/100
PM2.5 (fine particles):
Good
8.1/100
PM10 (coarse particles):
Good
2.4/100
NO2 (nitrogen dioxide):
Good
6.5/100
O3 (ozone):
Good
18.9/100
SO2 (sulfur dioxide):
Good
0.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.7/100
PM1 (ultrafine particles):
Good
8.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 16:00
AQI:
Fair
20.7/100
PM2.5 (fine particles):
Good
3.8/100
PM10 (coarse particles):
Good
1.0/100
NO2 (nitrogen dioxide):
Good
7.8/100
O3 (ozone):
Fair
20.7/100
SO2 (sulfur dioxide):
Good
0.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.5/100
PM1 (ultrafine particles):
Good
4.9/100
Pollen forecast in Helsinki
View pollen forecastSports venues in Helsinki
Frequently Asked Questions
Is air quality bad in Helsinki right now?
On 16 July 2026, overall air quality in Helsinki is good. AQI is the main air quality indicator at 18.9/100. Pollution peaks around 3:00 PM (O3: 18.9/100).
Will air quality be worse tomorrow in Helsinki?
On 17 July 2026, air quality conditions in Helsinki will be worse than today, with AQI forecast at fair at 20.7/100. Pollution peaks around 4:00 PM (O3: 20.7/100).
When is air pollution at its worst in Helsinki?
People in Helsinki tend to notice reduced air quality when shoreline birch and pine pollen peaks, or because of studded winter tyres; outside of those periods, conditions here remain among the more favourable in the region.
Are air quality levels in Helsinki 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?
Check air quality in other popular cities:
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