Worst air pollution Steenberg Golf Club – Championship Course - Cape Town, today and tomorrow

Today (18 July): Air quality in Steenberg Golf Club – Championship Course is fair. AQI, PM2.5, SO2, HCHO, and PM1 are fair; PM10, NO2, O3, and CO are good. Pollution peaks around 5:00 AM (HCHO: 29.9/100).
Tomorrow (19 July 2026): Air quality in Steenberg Golf Club – Championship Course is fair. AQI improves to medium; PM2.5 decreases to medium; NO2 increases to fair; SO2 decreases to medium; HCHO decreases to medium; PM1 decreases to medium; all other pollutants stay as today. Pollution peaks around 11:00 PM (PM1: 48.7/100). Airmine updates local air quality forecasts four times daily.

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

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Steenberg Golf Club air quality reflects the southern Constantia Valley position beneath Steenberg Mountain and the Tokai Forest, with vehicle traffic and wine estate and residential operations contributing modest local sources. The Cape's prevailing winds provide reliable ventilation through the Constantia corridor, while the outstanding mountain and forest backdrop creates natural filtration and Steenberg generally maintains good conditions throughout most of the year.

Today - 18 July | Pollution peaks at 05:00

AQI:

Fair

29.9/100

PM2.5 (fine particles):

Fair

23.5/100

PM10 (coarse particles):

Good

6.6/100

NO2 (nitrogen dioxide):

Good

18.7/100

O3 (ozone):

Good

13.8/100

SO2 (sulfur dioxide):

Fair

20.6/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Fair

29.9/100

PM1 (ultrafine particles):

Fair

29.3/100

Levels show the poorest local air quality during the day

Tomorrow - 19 July | Pollution peaks at 23:00

AQI:

Medium

48.7/100

PM2.5 (fine particles):

Medium

44.9/100

PM10 (coarse particles):

Good

18.2/100

NO2 (nitrogen dioxide):

Fair

20.1/100

O3 (ozone):

Good

16.3/100

SO2 (sulfur dioxide):

Medium

42.0/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Medium

42.1/100

PM1 (ultrafine particles):

Medium

48.7/100

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Frequently Asked Questions

Is air quality bad in Steenberg Golf Club – Championship Course right now?

On 18 July 2026, overall air quality in Steenberg Golf Club – Championship Course is fair. AQI is the main air quality indicator at 29.9/100. Pollution peaks around 5:00 AM (HCHO: 29.9/100).

Will air quality be worse tomorrow in Steenberg Golf Club – Championship Course?

On 19 July 2026, air quality conditions in Steenberg Golf Club – Championship Course will be similar to today, with NO2 forecast at fair at 20.1/100. Pollution peaks around 11:00 PM (PM1: 48.7/100).

When is air pollution at its worst in Steenberg Golf Club – Championship Course?

Golfers at Steenberg Golf Club – Championship Course are most likely to notice reduced air quality during the (southern hemisphere) spring pollen peak in September and October, or on hot, still days when local traffic emissions build up. The notorious Cape Doctor southeaster generally provides excellent ventilation, keeping conditions clear and comfortable through most of the summer.

Are air quality levels in Steenberg Golf Club – Championship 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.

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Data provided by Airmine — Last update: 18 July 2026 at 21:30 CEST (Data is updated four times daily.)

This forecast is produced independently using Airmine's own atmospheric data and models.

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.

For long term forecasts and maps, see the Airmine app