Worst air pollution Malmesbury, today and tomorrow
Today (9 August): Air quality in Malmesbury is fair. AQI and SO2 are fair; PM2.5, PM10, NO2, O3, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (SO2: 26.1/100).
Tomorrow (10 August 2026): Air quality in Malmesbury is fair. AQI improves to medium; NO2 increases to fair; SO2 decreases to medium; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 8:00 AM (SO2: 40.0/100). Airmine updates local air quality forecasts four times daily.
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Malmesbury lies roughly 60 km north-northeast of Cape Town. Air quality at Malmesbury is generally favourable thanks to the Cape's characteristically windy climate, with the southeasterly wind providing strong natural ventilation through much of the year. Vehicle traffic and fishing, farming, and small-harbour activity contribute the main local emissions, occasionally noticeable on still winter mornings. This mirrors what's typical for towns across the wider Cape region.
Today - 9 August | Pollution peaks at 23:00
AQI:
Fair
26.1/100
PM2.5 (fine particles):
Good
9.5/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Good
14.3/100
O3 (ozone):
Good
15.9/100
SO2 (sulfur dioxide):
Fair
26.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.7/100
PM1 (ultrafine particles):
Good
9.9/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 08:00
AQI:
Medium
40.0/100
PM2.5 (fine particles):
Good
17.5/100
PM10 (coarse particles):
Good
5.5/100
NO2 (nitrogen dioxide):
Fair
23.9/100
O3 (ozone):
Good
16.2/100
SO2 (sulfur dioxide):
Medium
40.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
16.0/100
PM1 (ultrafine particles):
Fair
20.0/100
Pollen forecast in Malmesbury
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Frequently Asked Questions
Is air quality bad in Malmesbury right now?
On 9 August 2026, overall air quality in Malmesbury is fair. AQI is the main air quality indicator at 26.1/100. Pollution peaks around 11:00 PM (SO2: 26.1/100).
Will air quality be worse tomorrow in Malmesbury?
On 10 August 2026, air quality conditions in Malmesbury will be similar to today, with NO2 forecast at fair at 23.9/100. Pollution peaks around 8:00 AM (SO2: 40.0/100).
When is air pollution at its worst in Malmesbury?
The rare still winter morning brings the worst air quality to Malmesbury, as emissions from fishing, farming, and small-harbour activity linger without the Cape's characteristic wind to clear them. Spring and summer typically see the southeasterly return, keeping conditions consistently well ventilated across the region, a seasonal pattern typical of the wider Cape region.
Are air quality levels in Malmesbury 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: 9 August 2026 at 20:27 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.
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