Highest air pollution Hoorn, today and tomorrow
Today (30 June): Air quality in Hoorn is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 PM (O3: 28.8/100).
Tomorrow (1 July 2026): Air quality in Hoorn is fair. All pollutants stay as today. Pollution peaks around 5:00 PM (O3: 37.3/100). 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
Hoorn's air quality benefits from its position on the IJsselmeer in North Holland, with consistent North Sea and IJsselmeer westerly breezes providing reliable maritime ventilation across this historic port city. Vehicle traffic on the A7 motorway and surrounding agricultural and logistics operations contribute local sources, while the open IJsselmeer water body and consistent maritime airflows generally maintain Hoorn among North Holland's more moderate urban environments throughout the year.
Today - 30 June | Pollution peaks at 20:00
AQI:
Fair
28.8/100
PM2.5 (fine particles):
Good
13.4/100
PM10 (coarse particles):
Good
5.1/100
NO2 (nitrogen dioxide):
Fair
27.9/100
O3 (ozone):
Fair
28.8/100
SO2 (sulfur dioxide):
Good
3.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Good
8.9/100
Levels show the poorest local air quality during the day
Tomorrow - 1 July | Pollution peaks at 17:00
AQI:
Fair
37.3/100
PM2.5 (fine particles):
Good
12.8/100
PM10 (coarse particles):
Good
4.8/100
NO2 (nitrogen dioxide):
Fair
33.9/100
O3 (ozone):
Fair
37.3/100
SO2 (sulfur dioxide):
Good
4.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Good
8.8/100
Pollen forecast in Hoorn
View pollen forecastFrequently Asked Questions
Is air quality bad in Hoorn right now?
On 30 June 2026, overall air quality in Hoorn is fair. AQI is the main air quality indicator at 28.8/100. Pollution peaks around 8:00 PM (O3: 28.8/100).
Will air quality be worse tomorrow in Hoorn?
On 1 July 2026, air quality conditions in Hoorn will be similar to today, with AQI forecast at fair at 37.3/100. Pollution peaks around 5:00 PM (O3: 37.3/100).
Are air quality levels in Hoorn 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 Netherlands?
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Data provided by Airmine — Last update: 30 June 2026 at 12:36 CET (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
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team