Worst air pollution Penrith, today and tomorrow
Today (16 July): Air quality in Penrith is fair. AQI and NO2 are fair; PM2.5, PM10, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 AM (NO2: 27.5/100).
Tomorrow (17 July 2026): Air quality in Penrith is fair. All pollutants stay as today. Pollution peaks around 8:00 PM (NO2: 32.6/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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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 - 16 July | Pollution peaks at 00:00
AQI:
Fair
27.5/100
PM2.5 (fine particles):
Good
9.4/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Fair
27.5/100
O3 (ozone):
Good
15.8/100
SO2 (sulfur dioxide):
Good
9.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
8.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 20:00
AQI:
Fair
32.6/100
PM2.5 (fine particles):
Good
8.3/100
PM10 (coarse particles):
Good
2.5/100
NO2 (nitrogen dioxide):
Fair
32.6/100
O3 (ozone):
Good
15.1/100
SO2 (sulfur dioxide):
Good
10.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.2/100
PM1 (ultrafine particles):
Good
9.8/100
Pollen forecast in Penrith
View pollen forecastFrequently Asked Questions
Is air quality bad in Penrith right now?
On 16 July 2026, overall air quality in Penrith is fair. AQI is the main air quality indicator at 27.5/100. Pollution peaks around 12:00 AM (NO2: 27.5/100).
Will air quality be worse tomorrow in Penrith?
On 17 July 2026, air quality conditions in Penrith will be similar to today, with AQI forecast at fair at 32.6/100. Pollution peaks around 8:00 PM (NO2: 32.6/100).
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.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app