Worst air pollution De Zalze Golf Club – Championship Course - Cape Town, today and tomorrow
Today (21 September): Air quality in De Zalze Golf Club – Championship Course is poor. AQI and PM1 are poor; PM2.5 and SO2 are moderate; PM10, NO2, and HCHO are fair; O3 and CO are good. Pollution peaks around 10:00 PM (PM1: 66.4/100).
Tomorrow (22 September 2026): Air quality in De Zalze Golf Club – Championship Course is very poor. AQI worsens to very poor; PM2.5 increases to very poor; PM10 increases to poor; NO2 increases to moderate; O3 increases to fair; HCHO increases to moderate; PM1 increases to very poor; all other pollutants stay as today. Pollution peaks around 8:00 PM (PM1: 100/100). 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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De Zalze Golf Club air quality reflects the Stellenbosch wine estate corridor among the vineyards with the Stellenbosch Mountain backdrop, with vehicle traffic and wine estate and residential operations contributing very modest local sources. The Cape's prevailing south-easter provides afternoon ventilation through the wine valley, while the extraordinary vineyard and mountain setting generally maintains good to moderate conditions throughout most of the year.
Today - 21 September | Pollution peaks at 22:00
AQI:
Poor
66.4/100
PM2.5 (fine particles):
Moderate
53.6/100
PM10 (coarse particles):
Fair
37.4/100
NO2 (nitrogen dioxide):
Fair
36.6/100
O3 (ozone):
Good
17.6/100
SO2 (sulfur dioxide):
Moderate
40.0/100
CO (carbon monoxide):
Good
2.4/100
HCHO (formaldehyde):
Fair
31.7/100
PM1 (ultrafine particles):
Poor
66.4/100
Levels show the poorest local air quality during the day
Tomorrow - 22 September | Pollution peaks at 20:00
AQI:
Very poor
100/100
PM2.5 (fine particles):
Very poor
93.0/100
PM10 (coarse particles):
Poor
63.3/100
NO2 (nitrogen dioxide):
Moderate
49.1/100
O3 (ozone):
Fair
30.5/100
SO2 (sulfur dioxide):
Moderate
54.8/100
CO (carbon monoxide):
Good
5.6/100
HCHO (formaldehyde):
Moderate
49.3/100
PM1 (ultrafine particles):
Very poor
100/100
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Frequently Asked Questions
Is air quality bad in De Zalze Golf Club – Championship Course right now?
On 21 September 2026, overall air quality in De Zalze Golf Club – Championship Course is poor. AQI is the main air quality indicator at 66.4/100. Pollution peaks around 10:00 PM (PM1: 66.4/100).
Will air quality be worse tomorrow in De Zalze Golf Club – Championship Course?
On 22 September 2026, air quality conditions in De Zalze Golf Club – Championship Course will be worse than today, with AQI forecast at very poor at 100/100. Pollution peaks around 8:00 PM (PM1: 100/100).
When is air pollution at its worst in De Zalze Golf Club – Championship Course?
Golfers at De Zalze 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 De Zalze 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: 21 September 2026 at 08:52 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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