Worst air pollution Hole in the Wall - Port St Johns, today and tomorrow
Today (20 September): Air quality in Hole in the Wall is moderate. AQI, PM2.5, and PM1 are moderate; PM10 is fair; NO2, O3, SO2, CO, and HCHO are good. Pollution peaks around 9:00 PM (PM1: 59.2/100).
Tomorrow (21 September 2026): Air quality in Hole in the Wall is moderate. All pollutants stay as today. Pollution peaks around 12:00 AM (PM1: 54.0/100). Airmine updates local air quality forecasts four times daily.
Get the full experience in the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
Hole in the Wall lies roughly 450 km northeast of Gqeberha. Air quality at Hole in the Wall is generally shaped by vehicle traffic and mixed farming and light industrial activity typical of the Eastern Cape. The area's moderate, transitional climate between two rainfall regimes usually allows for decent dispersal of local emissions, though calm mornings can occasionally see particulate levels rise. This mirrors what's typical for towns across the wider region.
Today - 20 September | Pollution peaks at 21:00
AQI:
Moderate
59.2/100
PM2.5 (fine particles):
Moderate
52.0/100
PM10 (coarse particles):
Fair
36.4/100
NO2 (nitrogen dioxide):
Good
11.1/100
O3 (ozone):
Good
16.7/100
SO2 (sulfur dioxide):
Good
9.8/100
CO (carbon monoxide):
Good
1.7/100
HCHO (formaldehyde):
Good
6.6/100
PM1 (ultrafine particles):
Moderate
59.2/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 00:00
AQI:
Moderate
54.0/100
PM2.5 (fine particles):
Moderate
48.9/100
PM10 (coarse particles):
Fair
28.8/100
NO2 (nitrogen dioxide):
Good
7.6/100
O3 (ozone):
Good
16.3/100
SO2 (sulfur dioxide):
Good
8.0/100
CO (carbon monoxide):
Good
1.7/100
HCHO (formaldehyde):
Good
6.4/100
PM1 (ultrafine particles):
Moderate
54.0/100
Other Landmarks in Port St Johns
Frequently Asked Questions
Is air quality bad in Hole in the Wall right now?
On 20 September 2026, overall air quality in Hole in the Wall is moderate. AQI is the main air quality indicator at 59.2/100. Pollution peaks around 9:00 PM (PM1: 59.2/100).
Will air quality be worse tomorrow in Hole in the Wall?
On 21 September 2026, air quality conditions in Hole in the Wall will be similar to today, with AQI forecast at moderate at 54.0/100. Pollution peaks around 12:00 AM (PM1: 54.0/100).
When is air pollution at its worst in Hole in the Wall?
Dry winter months bring the weakest air quality to Hole in the Wall, as reduced rainfall lets dust tied to mixed farming and light industrial activity persist longer than usual around town. Spring and summer typically bring clearer conditions as rainfall increases across this transitional Eastern Cape climate zone, a seasonal pattern typical of this Eastern Cape climate zone.
Are air quality levels in Hole in the Wall 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.
Want to see air quality forecasts for other cities in South Africa?
Check air quality in other popular cities:
Data provided by Airmine — Last update: 20 September 2026 at 14:33 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.
Get the full experience in the Airmine app.