Worst air pollution Ostend, today and tomorrow
Today (16 July): Air quality in Ostend is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (NO2: 39.6/100).
Tomorrow (17 July 2026): Air quality in Ostend is fair. All pollutants stay as today. Pollution peaks around 5:00 PM (O3: 34.8/100). 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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Ostend's air quality benefits from its exceptional North Sea coastal position in West Flanders, with powerful Atlantic and North Sea westerlies providing reliable and consistent maritime ventilation along the Belgian coast. Vehicle traffic on the A18 and ferry and port operations contribute local sources, while the outstanding North Sea exposure and the flat Flemish coastal plain generally maintain Ostend among Belgium's cleaner urban environments throughout most of the year.
Today - 16 July | Pollution peaks at 07:00
AQI:
Fair
39.6/100
PM2.5 (fine particles):
Good
11.0/100
PM10 (coarse particles):
Good
4.0/100
NO2 (nitrogen dioxide):
Fair
39.6/100
O3 (ozone):
Fair
24.0/100
SO2 (sulfur dioxide):
Good
3.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.4/100
PM1 (ultrafine particles):
Good
7.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 17:00
AQI:
Fair
34.8/100
PM2.5 (fine particles):
Good
16.7/100
PM10 (coarse particles):
Good
6.1/100
NO2 (nitrogen dioxide):
Fair
20.2/100
O3 (ozone):
Fair
34.8/100
SO2 (sulfur dioxide):
Good
2.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.8/100
PM1 (ultrafine particles):
Good
12.0/100
Pollen forecast in Ostend
View pollen forecastFrequently Asked Questions
Is air quality bad in Ostend right now?
On 16 July 2026, overall air quality in Ostend is fair. AQI is the main air quality indicator at 39.6/100. Pollution peaks around 7:00 AM (NO2: 39.6/100).
Will air quality be worse tomorrow in Ostend?
On 17 July 2026, air quality conditions in Ostend will be similar to today, with AQI forecast at fair at 34.8/100. Pollution peaks around 5:00 PM (O3: 34.8/100).
When is air pollution at its worst in Ostend?
People in Ostend tend to notice reduced air quality when local tree and grass allergens peaks, or because of vehicle traffic on the A18 and ferry and port operations; outside of those periods, conditions here remain among the more favourable in the region.
Are air quality levels in Ostend 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 Belgium?
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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