Worst air pollution Cranbourne, today and tomorrow
Today (17 September): Air quality in Cranbourne is moderate. AQI and NO2 are moderate; PM2.5 and PM10 are fair; O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 PM (NO2: 44.9/100).
Tomorrow (18 September 2026): Air quality in Cranbourne is fair. AQI improves to fair; NO2 decreases to fair; all other pollutants stay as today. Pollution peaks around 6:00 AM (NO2: 38.2/100). Airmine updates local air quality forecasts four times daily.
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Air quality around Cranbourne generally tracks greater Melbourne's suburban fringe, benefiting from open, unobstructed airflow across the flat volcanic plains southeast of the city. Winter can bring a wood-smoke haze on still, cold nights in surrounding low-density areas, while summer occasionally carries bushfire smoke drifting in from Gippsland or the Dandenong Ranges when fire danger rises. Traffic along the growing corridor's arterial roads adds a modest local pollution signal, but without heavy industry nearby, most days see readings comfortably within the good-to-moderate range.
Today - 17 September | Pollution peaks at 19:00
AQI:
Moderate
44.9/100
PM2.5 (fine particles):
Fair
37.7/100
PM10 (coarse particles):
Fair
30.0/100
NO2 (nitrogen dioxide):
Moderate
44.9/100
O3 (ozone):
Good
11.1/100
SO2 (sulfur dioxide):
Good
5.1/100
CO (carbon monoxide):
Good
0.7/100
HCHO (formaldehyde):
Good
4.9/100
PM1 (ultrafine particles):
Good
16.2/100
Levels show the poorest local air quality during the day
Tomorrow - 18 September | Pollution peaks at 06:00
AQI:
Fair
38.2/100
PM2.5 (fine particles):
Fair
37.4/100
PM10 (coarse particles):
Fair
24.9/100
NO2 (nitrogen dioxide):
Fair
38.2/100
O3 (ozone):
Good
12.9/100
SO2 (sulfur dioxide):
Good
4.8/100
CO (carbon monoxide):
Good
0.7/100
HCHO (formaldehyde):
Good
5.0/100
PM1 (ultrafine particles):
Good
19.4/100
Pollen forecast in Cranbourne
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Cranbourne
Frequently Asked Questions
Is air quality bad in Cranbourne right now?
On 17 September 2026, overall air quality in Cranbourne is moderate. AQI is the main air quality indicator at 44.9/100. Pollution peaks around 7:00 PM (NO2: 44.9/100).
Will air quality be worse tomorrow in Cranbourne?
On 18 September 2026, air quality conditions in Cranbourne will be better than today, with AQI forecast at fair at 38.2/100. Pollution peaks around 6:00 AM (NO2: 38.2/100).
When is air pollution at its worst in Cranbourne?
The least favourable stretch for Cranbourne air quality tends to be late spring, when grass pollen from surrounding paddocks combines with the odd bushfire smoke event drifting up from Gippsland in early summer. Winter evenings can also dip if wood heater use spikes during cold snaps. Residents with allergies or asthma should expect the toughest days around November and again during any prolonged summer fire activity, with otherwise unremarkable air on typical days.
Are air quality levels in Cranbourne 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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