Byron Bay Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (7 October): Air quality in Byron Bay is fair. AQI, PM2.5, and PM10 are fair; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 PM (PM2.5: 31.0/100).
Air Quality Tomorrow
Tomorrow (8 October 2026): Air quality in Byron Bay is good. AQI improves to good; PM2.5 decreases to good; PM10 decreases to good; all other pollutants stay as today. Pollution peaks around 8:00 PM (PM2.5: 19.4/100).
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Air Quality
Today - 7 October
| Pollen species | Level | Value |
|---|---|---|
| AQI | Fair | 31.0/100 |
| PM2.5 (fine particles) | Fair | 31.0/100 |
| PM10 (coarse particles) | Fair | 26.4/100 |
| NO2 (nitrogen dioxide) | Good | 2.6/100 |
| O3 (ozone) | Good | 17.9/100 |
| SO2 (sulfur dioxide) | Good | 2.3/100 |
| CO (carbon monoxide) | Good | 0.5/100 |
| HCHO (formaldehyde) | Good | 4.1/100 |
| PM1 (ultrafine particles) | Good | 3.8/100 |
Tomorrow - 8 October
| Pollen species | Level | Value |
|---|---|---|
| AQI | Good | 19.4/100 |
| PM2.5 (fine particles) | Good | 19.4/100 |
| PM10 (coarse particles) | Good | 16.8/100 |
| NO2 (nitrogen dioxide) | Good | 1.6/100 |
| O3 (ozone) | Good | 14.3/100 |
| SO2 (sulfur dioxide) | Good | 0.4/100 |
| CO (carbon monoxide) | Good | 0.3/100 |
| HCHO (formaldehyde) | Good | 1.2/100 |
| PM1 (ultrafine particles) | Good | 1.1/100 |
Local Environmental Conditions
With little dense development around Byron Bay, local traffic emissions are modest. Sea breezes along the coast usually help ventilate the area. The surrounding woodland releases natural compounds that, in warm sunny weather, help form ozone. Pollution carried in from the wider region can also raise levels at times. Exhaust from nearby roads is usually highest close to busy streets and junctions.
From June to August, cooler nights and lighter winds, with temperatures around 18°C, let traffic pollution linger near busy roads. In the warmer months, hot afternoons from October to May, averaging 25°C in the warmest month, are when ozone is most likely to build up. On the plus side, breezy weather in October, with winds near 25 km/h, tends to sweep pollution away.
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Frequently Asked Questions About Air Quality in New South Wales
Is air quality bad in Byron Bay right now?
On 7 October 2026, overall air quality in Byron Bay is fair. AQI is the main air quality indicator at 31.0/100. Pollution peaks around 7:00 PM (PM2.5: 31.0/100).
Will air quality be worse tomorrow in Byron Bay?
On 8 October 2026, air quality conditions in Byron Bay will be better than today, with AQI forecast at good at 19.4/100. Pollution peaks around 8:00 PM (PM2.5: 19.4/100).
When is air pollution at its worst in Byron Bay?
From June to August, cooler nights and lighter winds, with temperatures around 18°C, let traffic pollution linger near busy roads. In the warmer months, hot afternoons from October to May, averaging 25°C in the warmest month, are when ozone is most likely to build up. On the plus side, breezy weather in October, with winds near 25 km/h, tends to sweep pollution away.
Are air quality levels in Byron Bay 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.
Understanding the Scale
The 0–100 air quality scores represent risk levels, not direct air pollutant concentrations. Higher scores indicate higher risk.
Air Quality
| Good | 0-20 | Low air quality risk. Air quality is expected to be good, with low levels of pollution. |
| Fair | 20-40 | Generally low air quality risk. Air quality is expected to be acceptable, with some pollution present. |
| Moderate | 40-60 | Moderate air quality risk. Air pollution is elevated and air quality may be less favorable. |
| Poor | 60-80 | High air quality risk. Air pollution is high and air quality is expected to be poor. |
| Very Poor | 80-100 | Very high air quality risk. Air pollution is very high and air quality is expected to be very poor. |