Woodmead, Johannesburg Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (10 October): Air quality in Woodmead 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: 81.1/100).
Air Quality Tomorrow
Tomorrow (11 October 2026): Air quality in Woodmead is poor. AQI improves to poor; NO2 decreases to poor; O3 decreases to moderate; HCHO increases to poor; all other pollutants stay as today. Pollution peaks around 8:00 PM (NO2: 79.2/100).
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Air Quality
Today - 10 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Very poor | 81.1/100 |
| PM2.5 (fine particles) | Moderate | 52.4/100 |
| PM10 (coarse particles) | Moderate | 42.5/100 |
| NO2 (nitrogen dioxide) | Very poor | 81.1/100 |
| O3 (ozone) | Poor | 68.1/100 |
| SO2 (sulfur dioxide) | Moderate | 41.7/100 |
| CO (carbon monoxide) | Good | 1.9/100 |
| HCHO (formaldehyde) | Moderate | 50.0/100 |
| PM1 (ultrafine particles) | Poor | 68.7/100 |
Tomorrow - 11 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Poor | 79.2/100 |
| PM2.5 (fine particles) | Moderate | 56.8/100 |
| PM10 (coarse particles) | Moderate | 45.1/100 |
| NO2 (nitrogen dioxide) | Poor | 79.2/100 |
| O3 (ozone) | Moderate | 42.4/100 |
| SO2 (sulfur dioxide) | Moderate | 49.5/100 |
| CO (carbon monoxide) | Good | 3.2/100 |
| HCHO (formaldehyde) | Poor | 62.7/100 |
| PM1 (ultrafine particles) | Poor | 74.3/100 |
Local Environmental Conditions
This part of Johannesburg is largely built up, so vehicle exhaust and urban activity dominate the local air pollution sources. Parks and street trees provide a modest buffer against traffic pollution. Pollution carried in from the wider region can also raise levels at times. Exhaust from nearby roads is usually highest close to busy streets and junctions.
Summer sun from November to March cooks traffic fumes into ozone, especially in the warmest month, which averages 22°C. In contrast, cold spells from June to August, at around 10°C on average, are when smoke from home heating and traffic lingers longest. On the plus side, stronger winds around September, about 15 km/h on average, usually bring some of the cleanest air of the year.
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Frequently Asked Questions About Air Quality in Gauteng
Is air quality bad in Woodmead right now?
On 10 October 2026, overall air quality in Woodmead is very poor. AQI is the main air quality indicator at 81.1/100. Pollution peaks around 8:00 PM (NO2: 81.1/100).
Will air quality be worse tomorrow in Woodmead?
On 11 October 2026, air quality conditions in Woodmead will be better than today, with AQI forecast at poor at 79.2/100. Pollution peaks around 8:00 PM (NO2: 79.2/100).
When is air pollution at its worst in Woodmead?
Summer sun from November to March cooks traffic fumes into ozone, especially in the warmest month, which averages 22°C. In contrast, cold spells from June to August, at around 10°C on average, are when smoke from home heating and traffic lingers longest. On the plus side, stronger winds around September, about 15 km/h on average, usually bring some of the cleanest air of the year.
Are air quality levels in Woodmead 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. |