Oakland vs Modesto Air Quality Comparison
Which city has cleaner air right now, from the latest EPA AirNow AQI
As of September 24, 2026, Modesto, CA has cleaner air than Oakland, CA — AQI 52 (Moderate) vs 55 (Moderate), a gap of 3 AQI points in the latest EPA AirNow observations. Lower AQI means cleaner air. Oakland's reading is driven by PM2.5 and Modesto's by PM2.5.
Oakland, CA
Moderate
Modesto, CA
Moderate
Summary
Modesto has 3 points better air quality
Modesto has an AQI of 52 compared to 55
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Air quality in Oakland is moderate (AQI 55), with fine particles (PM2.5) the main concern. A True-HEPA purifier gives sensitive groups — kids, seniors and anyone with asthma or allergies — cleaner air indoors on days like today.
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5-Day Forecast Comparison
| Day | Oakland | Modesto | Better |
|---|---|---|---|
| Today | AQI 55 | AQI 67 | Oakland |