Worst air pollution Koombana Bay - Bunbury, today and tomorrow
Today (17 August): Air quality in Koombana Bay is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 PM (O3: 19.2/100).
Tomorrow (18 August 2026): Air quality in Koombana Bay is good. All pollutants stay as today. Pollution peaks around 11:00 PM (O3: 18.5/100). 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.
Koombana Bay sits on Bunbury's working waterfront, where the town's port, handling woodchip, alumina, and mineral sand exports, sits alongside a popular foreshore and beach precinct, meaning some port and industrial-related emissions are a distinctive local factor not present in purely residential coastal towns. The consistent south-west Indian Ocean sea breeze still provides good overall ventilation. Bushfire smoke is a periodic summer risk. Overall, background air quality here reflects a working port town moderated by strong coastal winds.
Today - 17 August | Pollution peaks at 13:00
AQI:
Good
19.2/100
PM2.5 (fine particles):
Good
8.9/100
PM10 (coarse particles):
Good
4.1/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Good
19.2/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.7/100
PM1 (ultrafine particles):
Good
1.3/100
Levels show the poorest local air quality during the day
Tomorrow - 18 August | Pollution peaks at 23:00
AQI:
Good
18.5/100
PM2.5 (fine particles):
Good
8.8/100
PM10 (coarse particles):
Good
4.0/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Good
18.5/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.3/100
PM1 (ultrafine particles):
Good
1.1/100
Other Landmarks in Bunbury
Frequently Asked Questions
Is air quality bad in Koombana Bay right now?
On 17 August 2026, overall air quality in Koombana Bay is good. AQI is the main air quality indicator at 19.2/100. Pollution peaks around 1:00 PM (O3: 19.2/100).
Will air quality be worse tomorrow in Koombana Bay?
On 18 August 2026, air quality conditions in Koombana Bay will be similar to today, with AQI forecast at good at 18.5/100. Pollution peaks around 11:00 PM (O3: 18.5/100).
When is air pollution at its worst in Koombana Bay?
Koombana Bay, right on the coast, generally benefits from consistent sea breezes that keep air quality high for most of the year. Summer, December to March, is the main exception, when bushfire smoke from the south-west forests can occasionally drift over on hot, calm mornings before the afternoon breeze clears it.
Are air quality levels in Koombana Bay 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.
Want to see air quality forecasts for other cities in Australia?
Check air quality in other popular cities:
Data provided by Airmine — Last update: 17 August 2026 at 08:27 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.