What is the air quality in Sydney?

Sydney, Australia has an annual US AQI of 40 (Reasonable) and average PM2.5 of 7.5 µg/m³, ranking #279 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Sydney?

March is typically the cleanest month (AQI 35) and May the most polluted (AQI 44).

PM2.5: 1996–2026 (monitors; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Global rank	City	Continent	AQI	PM2.5
279	Sydney, Australia	Oceania	AQI 40	PM2.5 7.5 µg/m³