Worst air pollution Colac, today and tomorrow
Today (16 July): Air quality in Colac is fair. AQI and NO2 are fair; PM2.5, PM10, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (NO2: 32.0/100).
Tomorrow (17 July 2026): Air quality in Colac is fair. All pollutants stay as today. Pollution peaks around 10:00 PM (NO2: 39.6/100). 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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Air quality in Colac is generally good given its rural, low-density setting, with agricultural dust from surrounding grazing and cropping land a minor seasonal factor during dry, windy periods. Wood heater smoke in winter and bushfire smoke in summer from surrounding forested areas are the other main seasonal concerns for this Western District town. The lake itself can also contribute localised humidity and mist on cool mornings, though this rarely affects air quality directly.
Today - 16 July | Pollution peaks at 23:00
AQI:
Fair
32.0/100
PM2.5 (fine particles):
Good
6.0/100
PM10 (coarse particles):
Good
2.0/100
NO2 (nitrogen dioxide):
Fair
32.0/100
O3 (ozone):
Good
13.5/100
SO2 (sulfur dioxide):
Good
2.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.5/100
PM1 (ultrafine particles):
Good
6.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 22:00
AQI:
Fair
39.6/100
PM2.5 (fine particles):
Good
9.4/100
PM10 (coarse particles):
Good
2.7/100
NO2 (nitrogen dioxide):
Fair
39.6/100
O3 (ozone):
Good
13.2/100
SO2 (sulfur dioxide):
Good
2.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Good
11.5/100
Pollen forecast in Colac
View pollen forecastFrequently Asked Questions
Is air quality bad in Colac right now?
On 16 July 2026, overall air quality in Colac is fair. AQI is the main air quality indicator at 32.0/100. Pollution peaks around 11:00 PM (NO2: 32.0/100).
Will air quality be worse tomorrow in Colac?
On 17 July 2026, air quality conditions in Colac will be similar to today, with AQI forecast at fair at 39.6/100. Pollution peaks around 10:00 PM (NO2: 39.6/100).
When is air pollution at its worst in Colac?
Winter nights bring the main risk of wood heater smoke settling over the town, while summer can bring bushfire smoke from forested areas in the Otways and surrounding ranges during dry years. Outside these periods, Colac's open rural setting generally supports clean air.
Are air quality levels in Colac 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