Adelaide air quality
South Australia, Australia · Live AQI and hourly forecast for the next 5 days · updated Sun 08:30 local time
Good
Great air. A perfect time to be outside.
- Next 24 hours
- 15–24US AQI, highest around Sun 18:00
- Best time outside
- Sun 08:00–11:00US AQI about 15
- PM2.5 vs WHO guideline
- 0.3×4.2 µg/m³ over 24 h, guideline 15
- Cigarette equivalent
- ≈ 0.2 a dayBerkeley Earth rule of thumb
- European AQI
- Goodlevel 1 of 6
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Pollutants in Adelaide right now
| Pollutant | Now | Next 24 h vs WHO | US AQI band |
|---|---|---|---|
| Fine particles (PM2.5) | 3.5 µg/m³ | 0.3× | Good |
| Coarse particles (PM10) | 4.7 µg/m³ | 0.1× | Good |
| Nitrogen dioxide (NO2) | 2.1 µg/m³ | 0.1× | Good |
| Ozone (O3) | 37 µg/m³ | 0.5× | Good |
| Sulphur dioxide (SO2) | 0.8 µg/m³ | 0.0× | Good |
| Carbon monoxide (CO) | 70 µg/m³ | 0.0× | Good |
| Desert dust | 0 µg/m³ | ||
| Smoke and haze (aerosol optical depth) | 0.17 | ||
| UV index | 1.9 |
“Next 24 h vs WHO” compares the forecast with the World Health Organization’s 2021 guideline levels: 24-hour means of 15 µg/m³ for PM2.5, 45 for PM10, 25 for NO2, 40 for SO2 and 4 mg/m³ for CO, and 100 µg/m³ over 8 hours for ozone. Above 1× is above the guideline.
Next 48 hours
Hourly US AQI. Highest 29 around Mon 17:00, lowest 15 around Sun 08:00.
5-day air quality forecast for Adelaide
Daily range of the hourly US AQI, from lowest to highest, on a scale of 0 to 150.
| Day | US AQI | At worst | PM2.5 avg | |
|---|---|---|---|---|
| Sun 27 Sept | 15–26 | 3.8 | ||
| Mon 28 Sept | 21–29 | 4.5 | ||
| Tue 29 Sept | 24–36 | 5.4 | ||
| Wed 30 Sept | 30–53 | 11 | ||
| Thu 1 Oct | 37–53 | 6.5 |
Common questions about the air in Adelaide
Is the air in Adelaide safe today?
Yes. Right now the US AQI in Adelaide is 15, which counts as good. Great air. A perfect time to be outside.
When is the best time to be outside in Adelaide?
Sun 08:00–11:00. That is the cleanest stretch in the next 24 hours, with the US AQI averaging about 15. The worst hour is around Sun 18:00, at 24.
What is the main pollutant in Adelaide?
Fine particles (PM2.5). It drives the index right now, at 3.5 µg/m³. Tiny particles from combustion, fires and dust that reach deep into the lungs. The main driver of AQI worldwide.
How does Adelaide's air compare with the WHO guideline?
Within the guideline. Over the next 24 hours PM2.5 averages about 4.2 µg/m³, against the World Health Organization's 24-hour guideline of 15 µg/m³. The other pollutants stay within their guideline levels.
How many cigarettes is a day of Adelaide's air?
About 0.2 cigarettes. Over the next 24 hours PM2.5 averages about 4.2 µg/m³. By Berkeley Earth's rule of thumb, 22 µg/m³ breathed for a day is roughly one cigarette.
Will air quality in Adelaide improve this week?
Today looks cleanest. Its AQI peaks at 26, against 53 on Wednesday, the worst day in the forecast.
Measured near Adelaide
| Station | PM2.5 µg/m³ | Measured |
|---|---|---|
| Unnamed sensor Sensor.Community, low-cost sensor | 1.4 | Sun 09:19 |
| Unnamed sensor Sensor.Community, low-cost sensor | 1.6 | Sun 09:17 |
| Unnamed sensor Sensor.Community, low-cost sensor | 0.2 | Sun 09:16 |
Air quality near Adelaide
- Melbourne 654 km SE
- Canberra 958 km E
- Sydney 1,162 km E
- Brisbane 1,601 km NE
- Perth 2,131 km W
- Auckland 3,245 km E
About this forecast
Forecast from CAMS global via Open-Meteo: the Copernicus Atmosphere Monitoring Service (CAMS) model at about 40 km resolution (10 km inside Europe), refreshed twice a day. Models smooth out street-level peaks, so busy roads and industrial sites can be worse than shown; ground stations, where there are any nearby, show what monitors actually measure. The US AQI follows the US EPA scale and the European AQI the EEA bands. Readings for 34.93°S, 138.60°E, updated 2026-09-26 23:00 UTC.