Worst air pollution North Sydney - Sydney, today and tomorrow
Today (4 August): Air quality in North Sydney is fair. AQI and NO2 are fair; PM2.5, PM10, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 PM (NO2: 37.6/100).
Tomorrow (5 August 2026): Air quality in North Sydney is fair. All pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 37.4/100). 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
Use our Strava plugin to check your own exposure.
North Sydney functions as a secondary CBD, and its cluster of high-rise office towers sits along the busy Pacific Highway corridor, making road traffic the dominant local air quality factor despite the suburb's harbourside position. Harbour breezes do help disperse emissions more effectively than fully inland business districts. There is no industry present. Bushfire smoke is a periodic summer concern from northern hinterland bushland. Overall, background air quality here reflects a busy commercial precinct moderated by coastal ventilation.
Today - 4 August | Pollution peaks at 19:00
AQI:
Fair
37.6/100
PM2.5 (fine particles):
Good
7.8/100
PM10 (coarse particles):
Good
2.1/100
NO2 (nitrogen dioxide):
Fair
37.6/100
O3 (ozone):
Good
17.1/100
SO2 (sulfur dioxide):
Good
13.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.0/100
PM1 (ultrafine particles):
Good
11.3/100
Levels show the poorest local air quality during the day
Tomorrow - 5 August | Pollution peaks at 23:00
AQI:
Fair
37.4/100
PM2.5 (fine particles):
Good
7.6/100
PM10 (coarse particles):
Good
2.1/100
NO2 (nitrogen dioxide):
Fair
37.4/100
O3 (ozone):
Good
16.1/100
SO2 (sulfur dioxide):
Good
8.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.4/100
PM1 (ultrafine particles):
Good
10.6/100
Other Landmarks in Sydney
Sports venues in Sydney
Frequently Asked Questions
Is air quality bad in North Sydney right now?
On 4 August 2026, overall air quality in North Sydney is fair. AQI is the main air quality indicator at 37.6/100. Pollution peaks around 7:00 PM (NO2: 37.6/100).
Will air quality be worse tomorrow in North Sydney?
On 5 August 2026, air quality conditions in North Sydney will be similar to today, with AQI forecast at fair at 37.4/100. Pollution peaks around 11:00 PM (NO2: 37.4/100).
When is air pollution at its worst in North Sydney?
North Sydney's commercial density adds some traffic haze on hot, still days, but its harbourside position generally keeps air moving well. The main seasonal risk remains summer bushfire smoke (December–March) pushing in on northwesterly winds. Outside this window, expect reliably good air quality.
Are air quality levels in North Sydney 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: 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