Worst air pollution Dee Why, today and tomorrow
Today (30 August): Air quality in Dee Why is moderate. AQI, NO2, and PM1 are moderate; PM2.5, O3, and SO2 are fair; PM10, CO, and HCHO are good. Pollution peaks around 1:00 AM (NO2: 48.1/100).
Tomorrow (31 August 2026): Air quality in Dee Why is moderate. PM2.5 increases to moderate; PM10 increases to fair; all other pollutants stay as today. Pollution peaks around 7:00 AM (PM1: 52.8/100). Airmine updates local air quality forecasts four times daily.
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In Dee Why, with less congestion here, dust from surrounding fields and occasional burning plays a bigger role than traffic. Nearby trees help trap a portion of this particulate load before it spreads. Local monitoring for the wider area tends to track closely with this general pattern. Conditions on any given day depend heavily on wind speed and direction locally.
Today - 30 August | Pollution peaks at 01:00
AQI:
Moderate
48.1/100
PM2.5 (fine particles):
Fair
39.1/100
PM10 (coarse particles):
Good
11.1/100
NO2 (nitrogen dioxide):
Moderate
48.1/100
O3 (ozone):
Fair
28.9/100
SO2 (sulfur dioxide):
Fair
24.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.4/100
PM1 (ultrafine particles):
Moderate
42.2/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 07:00
AQI:
Moderate
52.8/100
PM2.5 (fine particles):
Moderate
47.4/100
PM10 (coarse particles):
Fair
20.3/100
NO2 (nitrogen dioxide):
Moderate
46.8/100
O3 (ozone):
Fair
37.3/100
SO2 (sulfur dioxide):
Fair
35.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
12.4/100
PM1 (ultrafine particles):
Moderate
52.8/100
Pollen forecast in Dee Why
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Dee Why
Frequently Asked Questions
Is air quality bad in Dee Why right now?
On 30 August 2026, overall air quality in Dee Why is moderate. AQI is the main air quality indicator at 48.1/100. Pollution peaks around 1:00 AM (NO2: 48.1/100).
Will air quality be worse tomorrow in Dee Why?
On 31 August 2026, air quality conditions in Dee Why will be similar to today, with AQI forecast at moderate at 52.8/100. Pollution peaks around 7:00 AM (PM1: 52.8/100).
When is air pollution at its worst in Dee Why?
The colder months typically bring the heaviest particulate levels of the year, driven by heating season smoke that lingers under stagnant, cold winter air. By summer, periodic bushfire smoke becomes the more pressing issue in this area, with bushfire smoke capable of pushing particulate readings well above the ozone increase from heat and sun alone.
Are air quality levels in Dee Why 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: 30 August 2026 at 08:36 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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