Worst air pollution Penrith, today and tomorrow
Today (10 August): Air quality in Penrith is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 19.3/100).
Tomorrow (11 August 2026): Air quality in Penrith is good. All pollutants stay as today. Pollution peaks around 1:00 PM (O3: 16.9/100). Airmine updates local air quality forecasts four times daily.
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Penrith's position at the foot of the Blue Mountains, in a broad western Sydney basin, gives it some of the hottest and most stagnant air conditions in the metropolitan area. That basin effect traps vehicle emissions and encourages ozone formation on hot, still summer afternoons, making it one of the more ozone-prone parts of Sydney. Bushfire smoke drifting from mountain and rural fires is a further summer hazard. Winters are generally clearer, though cold nights can produce mild temperature inversions. Away from these episodes, background air quality is reasonably good.
Today - 10 August | Pollution peaks at 07:00
AQI:
Good
19.3/100
PM2.5 (fine particles):
Good
10.2/100
PM10 (coarse particles):
Good
2.7/100
NO2 (nitrogen dioxide):
Good
13.2/100
O3 (ozone):
Good
19.3/100
SO2 (sulfur dioxide):
Good
6.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.5/100
PM1 (ultrafine particles):
Good
14.3/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 13:00
AQI:
Good
16.9/100
PM2.5 (fine particles):
Good
2.6/100
PM10 (coarse particles):
Good
0.8/100
NO2 (nitrogen dioxide):
Good
15.6/100
O3 (ozone):
Good
16.9/100
SO2 (sulfur dioxide):
Good
6.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.3/100
PM1 (ultrafine particles):
Good
3.0/100
Pollen forecast in Penrith
View pollen forecastFrequently Asked Questions
Is air quality bad in Penrith right now?
On 10 August 2026, overall air quality in Penrith is good. AQI is the main air quality indicator at 19.3/100. Pollution peaks around 7:00 AM (O3: 19.3/100).
Will air quality be worse tomorrow in Penrith?
On 11 August 2026, air quality conditions in Penrith will be similar to today, with AQI forecast at good at 16.9/100. Pollution peaks around 1:00 PM (O3: 16.9/100).
When is air pollution at its worst in Penrith?
In Penrith, air quality typically takes its biggest hit during summer bushfire season, roughly December to March, when fires in the surrounding bush push smoke into town. Winter brings a quieter risk too: wood-heater smoke pooling on cold, still nights. Sensitive groups should watch forecasts during that period rather than assume year-round conditions apply.
Are air quality levels in Penrith 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: 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.
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