Worst air pollution Royal Johannesburg – East Course - Johannesburg, today and tomorrow

On 19 July 2026, overall air quality in Royal Johannesburg – East Course is fair. NO2 is the main pollutant at 35.2/100. Pollution peaks around 11:00 PM (SO2: 49.4/100).

On 20 July 2026, air quality conditions in Royal Johannesburg – East Course will be similar to today, with O3 forecast at fair at 29.5/100. Pollution peaks around 11:00 PM (SO2: 58.7/100).

As South Africa's oldest golf club, Royal Johannesburg sees its clearest conditions in the summer months once the November thunderstorms arrive, washing dust and traffic haze out of the northern suburbs. Winter mornings, by contrast, can trap a layer of smoke and vehicle emissions under the Highveld's still, cold air, easing only as the sun warms the fairways by midday.

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.