Worst air pollution Tønsberg, today and tomorrow
Today (16 July): Air quality in Tønsberg is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 28.0/100).
Tomorrow (17 July 2026): Air quality in Tønsberg is fair. All pollutants stay as today. Pollution peaks around 6:00 PM (O3: 28.4/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Use our Strava plugin to check your own exposure.
Tønsberg's air quality benefits from the Oslofjord's maritime ventilation in Vestfold county, with vehicle traffic on the E18 motorway and the surrounding industrial and residential corridor contributing local sources. The Oslofjord's consistent maritime ventilation provides reliable background air quality management, while the surrounding Vestfold agricultural plain and the fjord's open geometry generally maintain Tønsberg among the Oslofjord region's more moderate coastal urban environments throughout most of the year.
Today - 16 July | Pollution peaks at 17:00
AQI:
Fair
28.0/100
PM2.5 (fine particles):
Good
9.1/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Good
1.4/100
O3 (ozone):
Fair
28.0/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.2/100
PM1 (ultrafine particles):
Good
8.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 18:00
AQI:
Fair
28.4/100
PM2.5 (fine particles):
Good
8.2/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Good
1.1/100
O3 (ozone):
Fair
28.4/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.7/100
PM1 (ultrafine particles):
Good
7.7/100
Pollen forecast in Tønsberg
View pollen forecastFrequently Asked Questions
Is air quality bad in Tønsberg right now?
On 16 July 2026, overall air quality in Tønsberg is fair. AQI is the main air quality indicator at 28.0/100. Pollution peaks around 5:00 PM (O3: 28.0/100).
Will air quality be worse tomorrow in Tønsberg?
On 17 July 2026, air quality conditions in Tønsberg will be similar to today, with AQI forecast at fair at 28.4/100. Pollution peaks around 6:00 PM (O3: 28.4/100).
When is air pollution at its worst in Tønsberg?
Tønsberg's air quality is most affected during the peak weeks of the birch pollen season, when the spring birch peak coincides with the first cereal pollen from surrounding fields. Oslofjord-influenced airflow generally restores good conditions within a day or so. The rest of the year, residents can expect generally clean air in Tønsberg.
Are air quality levels in Tønsberg 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 Norway?
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