Sydney vs Perth

Live AQI Comparison

Updated 3h ago · Data from OpenAQ

Sydney

Australia

Good

PM2.54.5 µg/m³

PM1011.7 µg/m³

Perth

Australia

Moderate

PM2.512.2 µg/m³

PM100.7976190447807312 µg/m³

Verdict

Perth currently has worse air quality than Sydney (AQI 32 points higher). Both cities have acceptable air quality levels.

Sydney vs Perth Air Quality Analysis

Based on the latest measurements, Perth has an AQI of 51 compared to Sydney's AQI of 19. The World Health Organization (WHO) recommends annual PM2.5 levels below 15 µg/m³ and 24-hour levels below 45 µg/m³.

PM2.5 levels are within the "Moderate" range. Air quality is generally acceptable, though unusually sensitive individuals may experience minor symptoms.

Air quality can change rapidly due to weather patterns, traffic, and industrial activity. Check back hourly for the latest comparison between Sydney and Perth.

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Perth Air Quality →

Frequently Asked Questions

Which city has worse air quality today, Sydney or Perth?

Perth currently has worse air quality with an AQI of 51 compared to Sydney's AQI of 19. This data is updated hourly from government monitoring stations.

Is it safer to be in Sydney or Perth right now?

Based on current AQI levels, Sydney (AQI 19) has safer air quality than Perth (AQI 51). Both cities have acceptable air quality for outdoor activities.

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