Worst air pollution Hämeenlinna, today and tomorrow
Today (16 July): Air quality in Hämeenlinna is fair. AQI and NO2 are fair; PM2.5, PM10, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (NO2: 23.8/100).
Tomorrow (17 July 2026): Air quality in Hämeenlinna is fair. All pollutants stay as today. Pollution peaks around 6:00 AM (NO2: 30.2/100). 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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Hämeenlinna's air quality is generally good by European standards, with the Finnish lake district's clean boreal forest airflows and the surrounding Lake Vanajavesi providing natural ventilation in this southern Finnish city. Vehicle traffic on the E12 motorway and the surrounding manufacturing and logistics industry contribute local sources, while wood-burning stoves during the long cold winters add seasonal PM2.5 and the Finnish lake and forest environment generally maintains moderate conditions.
Today - 16 July | Pollution peaks at 23:00
AQI:
Fair
23.8/100
PM2.5 (fine particles):
Good
18.4/100
PM10 (coarse particles):
Good
5.5/100
NO2 (nitrogen dioxide):
Fair
23.8/100
O3 (ozone):
Good
18.1/100
SO2 (sulfur dioxide):
Good
3.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
19.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 06:00
AQI:
Fair
30.2/100
PM2.5 (fine particles):
Good
9.8/100
PM10 (coarse particles):
Good
3.0/100
NO2 (nitrogen dioxide):
Fair
30.2/100
O3 (ozone):
Good
19.6/100
SO2 (sulfur dioxide):
Good
5.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.8/100
PM1 (ultrafine particles):
Good
10.8/100
Pollen forecast in Hämeenlinna
View pollen forecastFrequently Asked Questions
Is air quality bad in Hämeenlinna right now?
On 16 July 2026, overall air quality in Hämeenlinna is fair. AQI is the main air quality indicator at 23.8/100. Pollution peaks around 11:00 PM (NO2: 23.8/100).
Will air quality be worse tomorrow in Hämeenlinna?
On 17 July 2026, air quality conditions in Hämeenlinna will be similar to today, with AQI forecast at fair at 30.2/100. Pollution peaks around 6:00 AM (NO2: 30.2/100).
When is air pollution at its worst in Hämeenlinna?
The most noticeable dips in Hämeenlinna's air quality come when pine and alder pollen peaks, or because of vehicle traffic on the E12 motorway and the neighbouring manufacturing and logistics industry; a shift to wetter or windier weather typically brings noticeable relief.
Are air quality levels in Hämeenlinna 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