Worst air pollution Sunbury, today and tomorrow
Today (10 August): Air quality in Sunbury is fair. AQI and NO2 are fair; PM2.5, PM10, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (NO2: 25.2/100).
Tomorrow (11 August 2026): Air quality in Sunbury is fair. All pollutants stay as today. Pollution peaks around 8:00 AM (NO2: 25.3/100). Airmine updates local air quality forecasts four times daily.
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As one of Melbourne's fastest-growing outer-northern growth corridor towns, Sunbury's air quality is shaped by construction dust from new estates, traffic along the Calder Freeway, and open grassland pollen and dust from the volcanic plains that still surround much of the town. Being on Melbourne's drier northern fringe, Sunbury can experience more dust from exposed cleared land and building sites than the city's established suburbs, while its distance from the coast means it misses some of the bay's moderating sea breezes, allowing summer heat and pollutants to build more readily on still days.
Today - 10 August | Pollution peaks at 16:00
AQI:
Fair
25.2/100
PM2.5 (fine particles):
Good
3.6/100
PM10 (coarse particles):
Good
1.0/100
NO2 (nitrogen dioxide):
Fair
25.2/100
O3 (ozone):
Good
13.0/100
SO2 (sulfur dioxide):
Good
5.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.8/100
PM1 (ultrafine particles):
Good
5.1/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 08:00
AQI:
Fair
25.3/100
PM2.5 (fine particles):
Good
4.7/100
PM10 (coarse particles):
Good
1.7/100
NO2 (nitrogen dioxide):
Fair
25.3/100
O3 (ozone):
Good
13.2/100
SO2 (sulfur dioxide):
Good
5.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.5/100
PM1 (ultrafine particles):
Good
4.7/100
Pollen forecast in Sunbury
View pollen forecastFrequently Asked Questions
Is air quality bad in Sunbury right now?
On 10 August 2026, overall air quality in Sunbury is fair. AQI is the main air quality indicator at 25.2/100. Pollution peaks around 4:00 PM (NO2: 25.2/100).
Will air quality be worse tomorrow in Sunbury?
On 11 August 2026, air quality conditions in Sunbury will be similar to today, with AQI forecast at fair at 25.3/100. Pollution peaks around 8:00 AM (NO2: 25.3/100).
When is air pollution at its worst in Sunbury?
Air quality is typically worst during dry, windy spring and summer days when dust rises from construction sites and cleared grassland simultaneously, and during still winter mornings when traffic and wood-heater smoke can settle in low-lying pockets near the creek.
Are air quality levels in Sunbury 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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