Worst air pollution WACA Ground - Perth, today and tomorrow
Today (4 August): Air quality in WACA Ground is fair. AQI and NO2 are fair; PM2.5, PM10, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (NO2: 36.4/100).
Tomorrow (5 August 2026): Air quality in WACA Ground is fair. AQI improves to medium; PM2.5 increases to fair; NO2 decreases to medium; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 7:00 PM (NO2: 40.4/100). 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
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East of Perth's CBD on the banks of the Swan River, the historic WACA Ground sits in a leafy riverside setting that catches the same dependable sea breeze that keeps much of Perth's air clean. Traffic in the immediate surrounds is moderate rather than heavy, and the open river corridor helps keep the atmosphere moving even on warmer days. In keeping with Western Australia's Mediterranean climate, the ground enjoys generally good air quality year-round, with bushfire smoke during the December to March fire season standing out as the main seasonal interruption to otherwise mild conditions.
Today - 4 August | Pollution peaks at 23:00
AQI:
Fair
36.4/100
PM2.5 (fine particles):
Good
13.2/100
PM10 (coarse particles):
Good
4.3/100
NO2 (nitrogen dioxide):
Fair
36.4/100
O3 (ozone):
Good
17.8/100
SO2 (sulfur dioxide):
Good
7.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.1/100
PM1 (ultrafine particles):
Good
14.0/100
Levels show the poorest local air quality during the day
Tomorrow - 5 August | Pollution peaks at 19:00
AQI:
Medium
40.4/100
PM2.5 (fine particles):
Fair
22.9/100
PM10 (coarse particles):
Good
6.7/100
NO2 (nitrogen dioxide):
Medium
40.4/100
O3 (ozone):
Good
16.5/100
SO2 (sulfur dioxide):
Good
9.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.3/100
PM1 (ultrafine particles):
Fair
27.3/100
Other Landmarks in Perth
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Frequently Asked Questions
Is air quality bad in WACA Ground right now?
On 4 August 2026, overall air quality in WACA Ground is fair. AQI is the main air quality indicator at 36.4/100. Pollution peaks around 11:00 PM (NO2: 36.4/100).
Will air quality be worse tomorrow in WACA Ground?
On 5 August 2026, air quality conditions in WACA Ground will be similar to today, with PM1 forecast at fair at 27.3/100. Pollution peaks around 7:00 PM (NO2: 40.4/100).
When is air pollution at its worst in WACA Ground?
WACA Ground sees its least favourable air for a day-long fixture during the December-to-March bushfire season, the one period that can override an otherwise clean profile. Away from fire season, a consistent onshore breeze generally keeps air quality high. Anyone sensitive to smoke or dust attending then may want to check conditions on the day.
Are air quality levels in WACA Ground 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: 4 August 2026 at 16:38 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.
For long term forecasts and maps, see the Airmine app