Worst air pollution Bandar Seri Begawan, today and tomorrow
Today (10 August): Air quality in Bandar Seri Begawan is fair. AQI, PM2.5, O3, HCHO, and PM1 are fair; PM10, NO2, SO2, and CO are good. Pollution peaks around 5:00 PM (O3: 38.8/100).
Tomorrow (11 August 2026): Air quality in Bandar Seri Begawan is fair. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 50.7/100). Airmine updates local air quality forecasts four times daily.
Get the full experience in the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
Bandar Seri Begawan's air quality reflects the flat Brunei Darussalam coastal position on the Brunei River at the South China Sea, with vehicle traffic on surrounding roads and the government, oil wealth, and services corridor contributing local sources. Consistent South China Sea maritime breezes provide ventilation, while transboundary haze from Indonesian and Malaysian Borneo peatland fires represents the primary severe seasonal concern and Bandar Seri Begawan generally maintains moderate to good conditions outside haze episodes throughout most of the year.
Today - 10 August | Pollution peaks at 17:00
AQI:
Fair
38.8/100
PM2.5 (fine particles):
Fair
24.0/100
PM10 (coarse particles):
Good
6.8/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
38.8/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Fair
22.5/100
PM1 (ultrafine particles):
Fair
29.6/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 16:00
AQI:
Medium
50.7/100
PM2.5 (fine particles):
Fair
25.8/100
PM10 (coarse particles):
Good
7.5/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Medium
50.7/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Fair
22.9/100
PM1 (ultrafine particles):
Fair
30.8/100
Frequently Asked Questions
Is air quality bad in Bandar Seri Begawan right now?
On 10 August 2026, overall air quality in Bandar Seri Begawan is fair. AQI is the main air quality indicator at 38.8/100. Pollution peaks around 5:00 PM (O3: 38.8/100).
Will air quality be worse tomorrow in Bandar Seri Begawan?
On 11 August 2026, air quality conditions in Bandar Seri Begawan will be similar to today, with PM1 forecast at fair at 30.8/100. Pollution peaks around 4:00 PM (O3: 50.7/100).
When is air pollution at its worst in Bandar Seri Begawan?
Pollution in Bandar Seri Begawan typically rises when traffic emissions and steel, cement, and chemical production combine, especially once maritime winds die down. Maritime airflow normally ventilates the area well, though calmer spells let levels rise. Areas further inland without this ventilation tend to fare worse.
Are air quality levels in Bandar Seri Begawan 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
Check air quality in other popular cities:
Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Get the full experience in the Airmine app.