Worst air pollution Vaucluse - Sydney, today and tomorrow
Today (17 September): Air quality in Vaucluse is moderate. AQI and PM2.5 are moderate; PM10 and NO2 are fair; O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (PM2.5: 40.0/100).
Tomorrow (18 September 2026): Air quality in Vaucluse is moderate. NO2 increases to moderate; O3 increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 8:00 PM (NO2: 50.8/100). Airmine updates local air quality forecasts four times daily.
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Vaucluse sits on exposed ocean cliffs in Sydney's eastern suburbs, a highly ventilated position where near-constant sea breezes off the Tasman keep background air quality excellent for an inner-city area. Traffic is light, confined mostly to local residential streets rather than through-routes. There is no industry here. Bushfire smoke is a periodic summer risk from more distant hinterland bushland, though the suburb's exposed, low-vegetation clifftop setting limits local fire risk. Overall, this is one of Sydney's cleanest-air suburbs.
Today - 17 September | Pollution peaks at 23:00
AQI:
Moderate
40.0/100
PM2.5 (fine particles):
Moderate
40.0/100
PM10 (coarse particles):
Fair
26.5/100
NO2 (nitrogen dioxide):
Fair
30.9/100
O3 (ozone):
Good
18.2/100
SO2 (sulfur dioxide):
Good
5.9/100
CO (carbon monoxide):
Good
0.5/100
HCHO (formaldehyde):
Good
5.4/100
PM1 (ultrafine particles):
Good
16.5/100
Levels show the poorest local air quality during the day
Tomorrow - 18 September | Pollution peaks at 20:00
AQI:
Moderate
50.8/100
PM2.5 (fine particles):
Moderate
43.9/100
PM10 (coarse particles):
Fair
31.9/100
NO2 (nitrogen dioxide):
Moderate
50.8/100
O3 (ozone):
Fair
36.7/100
SO2 (sulfur dioxide):
Good
12.1/100
CO (carbon monoxide):
Good
0.8/100
HCHO (formaldehyde):
Good
10.9/100
PM1 (ultrafine particles):
Fair
28.3/100
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Frequently Asked Questions
Is air quality bad in Vaucluse right now?
On 17 September 2026, overall air quality in Vaucluse is moderate. AQI is the main air quality indicator at 40.0/100. Pollution peaks around 11:00 PM (PM2.5: 40.0/100).
Will air quality be worse tomorrow in Vaucluse?
On 18 September 2026, air quality conditions in Vaucluse will be similar to today, with AQI forecast at moderate at 50.8/100. Pollution peaks around 8:00 PM (NO2: 50.8/100).
When is air pollution at its worst in Vaucluse?
Perched on Sydney's eastern headland, Vaucluse enjoys near-constant sea breezes that keep air quality high for most of the year. The chief exception is summer bushfire smoke (December–March), which can occasionally reach even this exposed position on strong northwesterly wind events. Outside fire season, expect some of the cleanest air in the city.
Are air quality levels in Vaucluse 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: 16 September 2026 at 20:30 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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