Worst air pollution Margaret River, today and tomorrow
Today (21 September): Air quality in Margaret River is fair. AQI and PM2.5 are fair; PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (PM2.5: 29.2/100).
Tomorrow (22 September 2026): Air quality in Margaret River is fair. All pollutants stay as today. Pollution peaks around 10:00 AM (PM2.5: 28.4/100). Airmine updates local air quality forecasts four times daily.
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Renowned for wine and forest as much as coastline, Margaret River generally enjoys some of the cleanest air in the state, thanks to consistent breezes rolling in off the Indian and Southern Oceans. Low humidity and dry summers typify the region's Mediterranean climate, with little in the way of industrial or urban pollution sources. The main seasonal risk is bushfire smoke, which can affect the area between December and March given the extensive surrounding forest and karri woodland. Vineyard and agricultural activity adds only minor dust locally. Outside fire season, air quality here is consistently excellent, matching the region's clean reputation.
Today - 21 September | Pollution peaks at 11:00
AQI:
Fair
29.2/100
PM2.5 (fine particles):
Fair
29.2/100
PM10 (coarse particles):
Good
20.0/100
NO2 (nitrogen dioxide):
Good
5.3/100
O3 (ozone):
Good
14.7/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.3/100
HCHO (formaldehyde):
Good
2.8/100
PM1 (ultrafine particles):
Good
2.6/100
Levels show the poorest local air quality during the day
Tomorrow - 22 September | Pollution peaks at 10:00
AQI:
Fair
28.4/100
PM2.5 (fine particles):
Fair
28.4/100
PM10 (coarse particles):
Good
17.3/100
NO2 (nitrogen dioxide):
Good
2.6/100
O3 (ozone):
Good
14.1/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.3/100
HCHO (formaldehyde):
Good
2.4/100
PM1 (ultrafine particles):
Good
3.7/100
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Frequently Asked Questions
Is air quality bad in Margaret River right now?
On 21 September 2026, overall air quality in Margaret River is fair. AQI is the main air quality indicator at 29.2/100. Pollution peaks around 11:00 AM (PM2.5: 29.2/100).
Will air quality be worse tomorrow in Margaret River?
On 22 September 2026, air quality conditions in Margaret River will be similar to today, with AQI forecast at fair at 28.4/100. Pollution peaks around 10:00 AM (PM2.5: 28.4/100).
When is air pollution at its worst in Margaret River?
Air in Margaret River is generally clean, but that changes during summer (December-March), when bushfire smoke is the main risk on hot, dry northerly winds. Outside fire season, the reliable afternoon sea breeze keeps the air flushed clean. Sensitive groups should watch forecasts during that period rather than assume year-round conditions apply.
Are air quality levels in Margaret River 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.
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Data provided by Airmine — Last update: 20 September 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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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