Worst air pollution Cranbourne, today and tomorrow

On 5 August 2026, overall air quality in Cranbourne is good. AQI is the main air quality indicator at 15.7/100. Pollution peaks around 2:00 PM (O3: 15.7/100).

On 6 August 2026, air quality conditions in Cranbourne will be similar to today, with AQI forecast at good at 18.6/100. Pollution peaks around 8:00 PM (NO2: 18.6/100).

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.

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.

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.