Royal Johannesburg – East Course, Johannesburg Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (10 October): Air quality in Royal Johannesburg – East Course is very poor. AQI and NO2 are very poor; O3 and PM1 are poor; PM2.5, PM10, SO2, and HCHO are moderate; CO is good. Pollution peaks around 8:00 PM (NO2: 82.3/100).
Air Quality Tomorrow
Tomorrow (11 October 2026): Air quality in Royal Johannesburg – East Course is very poor. PM2.5 increases to poor; O3 decreases to moderate; HCHO increases to poor; all other pollutants stay as today. Pollution peaks around 8:00 PM (NO2: 80.5/100).
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Air Quality
Today - 10 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Very poor | 82.3/100 |
| PM2.5 (fine particles) | Moderate | 57.8/100 |
| PM10 (coarse particles) | Moderate | 42.5/100 |
| NO2 (nitrogen dioxide) | Very poor | 82.3/100 |
| O3 (ozone) | Poor | 68.4/100 |
| SO2 (sulfur dioxide) | Moderate | 41.7/100 |
| CO (carbon monoxide) | Good | 1.9/100 |
| HCHO (formaldehyde) | Moderate | 50.0/100 |
| PM1 (ultrafine particles) | Poor | 67.2/100 |
Tomorrow - 11 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Very poor | 80.5/100 |
| PM2.5 (fine particles) | Poor | 62.9/100 |
| PM10 (coarse particles) | Moderate | 45.1/100 |
| NO2 (nitrogen dioxide) | Very poor | 80.5/100 |
| O3 (ozone) | Moderate | 42.7/100 |
| SO2 (sulfur dioxide) | Moderate | 49.5/100 |
| CO (carbon monoxide) | Good | 3.2/100 |
| HCHO (formaldehyde) | Poor | 62.7/100 |
| PM1 (ultrafine particles) | Poor | 72.6/100 |
Local Environmental Conditions
Around this part of Johannesburg, a mix of built-up land and open space means traffic is an important, but not overwhelming, local pollution source. The open grass and scrubland around the area can add dust in dry weather and smoke from occasional fires. Pockets of trees and green space help filter a small share of the particles from traffic.
From June to August, temperatures near 10°C let smoke and particles from home heating and traffic build up, especially on cold, still mornings. By contrast, hot afternoons from November to March, averaging 22°C in the warmest month, are when ozone is most likely to build up. Meanwhile, with little rain from August to September, dust from dry fields and open ground becomes more common.
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Frequently Asked Questions About Air Quality in Gauteng
Is air quality bad in Royal Johannesburg – East Course right now?
On 10 October 2026, overall air quality in Royal Johannesburg – East Course is very poor. AQI is the main air quality indicator at 82.3/100. Pollution peaks around 8:00 PM (NO2: 82.3/100).
Will air quality be worse tomorrow in Royal Johannesburg – East Course?
On 11 October 2026, air quality conditions in Royal Johannesburg – East Course will be similar to today, with AQI forecast at very poor at 80.5/100. Pollution peaks around 8:00 PM (NO2: 80.5/100).
When is air pollution at its worst in Royal Johannesburg – East Course?
From June to August, temperatures near 10°C let smoke and particles from home heating and traffic build up, especially on cold, still mornings. By contrast, hot afternoons from November to March, averaging 22°C in the warmest month, are when ozone is most likely to build up. Meanwhile, with little rain from August to September, dust from dry fields and open ground becomes more common.
Are air quality levels in Royal Johannesburg – East Course 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.
Understanding the Scale
The 0–100 air quality scores represent risk levels, not direct air pollutant concentrations. Higher scores indicate higher risk.
Air Quality
| Good | 0-20 | Low air quality risk. Air quality is expected to be good, with low levels of pollution. |
| Fair | 20-40 | Generally low air quality risk. Air quality is expected to be acceptable, with some pollution present. |
| Moderate | 40-60 | Moderate air quality risk. Air pollution is elevated and air quality may be less favorable. |
| Poor | 60-80 | High air quality risk. Air pollution is high and air quality is expected to be poor. |
| Very Poor | 80-100 | Very high air quality risk. Air pollution is very high and air quality is expected to be very poor. |