Worst air pollution Grafton, today and tomorrow
Today (21 September): Air quality in Grafton is moderate. AQI, PM2.5, PM10, and PM1 are moderate; O3 and HCHO are fair; NO2, SO2, and CO are good. Pollution peaks around 12:00 AM (PM2.5: 55.7/100).
Tomorrow (22 September 2026): Air quality in Grafton is moderate. PM10 decreases to fair; O3 decreases to good; HCHO decreases to good; all other pollutants stay as today. Pollution peaks around 12:00 AM (PM2.5: 51.0/100). Airmine updates local air quality forecasts four times daily.
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Air quality in Grafton is generally good, with its riverside, low-density setting limiting industrial and traffic pollution. Seasonal bushfire smoke from surrounding forested ranges is the main concern, typically most active in late winter and spring, while agricultural burning on nearby cane and grazing land can add localised smoke at other times of year, particularly during drier stretches. The surrounding floodplain's flat, open character means smoke and haze can occasionally linger before dispersing.
Today - 21 September | Pollution peaks at 00:00
AQI:
Moderate
55.7/100
PM2.5 (fine particles):
Moderate
55.7/100
PM10 (coarse particles):
Moderate
40.5/100
NO2 (nitrogen dioxide):
Good
9.9/100
O3 (ozone):
Fair
25.2/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
1.1/100
HCHO (formaldehyde):
Fair
20.2/100
PM1 (ultrafine particles):
Moderate
50.7/100
Levels show the poorest local air quality during the day
Tomorrow - 22 September | Pollution peaks at 00:00
AQI:
Moderate
51.0/100
PM2.5 (fine particles):
Moderate
51.0/100
PM10 (coarse particles):
Fair
34.9/100
NO2 (nitrogen dioxide):
Good
5.2/100
O3 (ozone):
Good
12.5/100
SO2 (sulfur dioxide):
Good
1.2/100
CO (carbon monoxide):
Good
1.0/100
HCHO (formaldehyde):
Good
17.3/100
PM1 (ultrafine particles):
Moderate
46.2/100
Pollen forecast in Grafton
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Grafton
Frequently Asked Questions
Is air quality bad in Grafton right now?
On 21 September 2026, overall air quality in Grafton is moderate. AQI is the main air quality indicator at 55.7/100. Pollution peaks around 12:00 AM (PM2.5: 55.7/100).
Will air quality be worse tomorrow in Grafton?
On 22 September 2026, air quality conditions in Grafton will be similar to today, with AQI forecast at moderate at 51.0/100. Pollution peaks around 12:00 AM (PM2.5: 51.0/100).
When is air pollution at its worst in Grafton?
Expect the clearest air outside the late winter to spring bushfire season, when smoke from surrounding forest country is most likely to affect the Clarence Valley. Localised smoke from agricultural burning can also occur periodically, though Grafton's riverside setting generally sees good dispersion once conditions turn breezy.
Are air quality levels in Grafton 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: 20 September 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.
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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