Worst air pollution Malmesbury, today and tomorrow

On 30 August 2026, overall air quality in Malmesbury is moderate. AQI is the main air quality indicator at 41.8/100. Pollution peaks around 12:00 AM (SO2: 41.8/100).

On 31 August 2026, air quality conditions in Malmesbury will be similar to today, with AQI forecast at moderate at 42.4/100. Pollution peaks around 11:00 PM (SO2: 42.4/100).

The rare still winter morning brings the worst air quality to Malmesbury, as emissions from fishing, farming, and small-harbour activity linger without the Cape's characteristic wind to clear them. Spring and summer typically see the southeasterly return, keeping conditions consistently well ventilated across the region, a seasonal pattern typical of the wider Cape region.

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.