Worst air pollution Kiama Downs - Wollongong, today and tomorrow
Today (17 September): Air quality in Kiama Downs is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 17.2/100).
Tomorrow (18 September 2026): Air quality in Kiama Downs is fair. AQI worsens to fair; PM2.5 increases to fair; PM10 increases to fair; NO2 increases to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 6:00 PM (NO2: 31.0/100). 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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Kiama Downs sits on the NSW South Coast near Kiama, a fully exposed coastal suburb where onshore Tasman Sea breezes provide strong, consistent ventilation and keep background air quality generally excellent. Traffic is light, concentrated on the Princes Highway rather than through residential streets. There is no industry present. Bushfire smoke is a periodic summer risk from the forested escarpment inland. Overall, this beachside suburb enjoys consistently clean air typical of the well-ventilated Illawarra coastline.
Today - 17 September | Pollution peaks at 16:00
AQI:
Good
17.2/100
PM2.5 (fine particles):
Good
11.1/100
PM10 (coarse particles):
Good
13.6/100
NO2 (nitrogen dioxide):
Good
12.2/100
O3 (ozone):
Good
17.2/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.4/100
HCHO (formaldehyde):
Good
1.6/100
PM1 (ultrafine particles):
Good
7.7/100
Levels show the poorest local air quality during the day
Tomorrow - 18 September | Pollution peaks at 18:00
AQI:
Fair
31.0/100
PM2.5 (fine particles):
Fair
21.6/100
PM10 (coarse particles):
Fair
22.9/100
NO2 (nitrogen dioxide):
Fair
31.0/100
O3 (ozone):
Fair
24.7/100
SO2 (sulfur dioxide):
Good
3.2/100
CO (carbon monoxide):
Good
0.5/100
HCHO (formaldehyde):
Good
3.9/100
PM1 (ultrafine particles):
Good
17.9/100
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Frequently Asked Questions
Is air quality bad in Kiama Downs right now?
On 17 September 2026, overall air quality in Kiama Downs is good. AQI is the main air quality indicator at 17.2/100. Pollution peaks around 4:00 PM (O3: 17.2/100).
Will air quality be worse tomorrow in Kiama Downs?
On 18 September 2026, air quality conditions in Kiama Downs will be worse than today, with AQI forecast at fair at 31.0/100. Pollution peaks around 6:00 PM (NO2: 31.0/100).
When is air pollution at its worst in Kiama Downs?
Kiama Downs' coastal position generally keeps air quality good, with summer bushfire smoke, December to March, the main seasonal concern during hot, still days when fires in the surrounding escarpment forests can send haze toward the coast. Winter wood-heater smoke on cold, calm nights is a secondary factor.
Are air quality levels in Kiama Downs 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: 16 September 2026 at 20:30 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.
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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