San Francisco vs Long Beach Air Quality Comparison
Which city has cleaner air right now, from the latest EPA AirNow AQI
As of September 24, 2026, Long Beach, CA has cleaner air than San Francisco, CA — AQI 47 (Good) vs 52 (Moderate), a gap of 5 AQI points in the latest EPA AirNow observations. Lower AQI means cleaner air. San Francisco's reading is driven by PM2.5 and Long Beach's by PM2.5.
San Francisco, CA
Moderate
Long Beach, CA
Good
Summary
Long Beach has 5 points better air quality
Long Beach has an AQI of 47 compared to 52
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5-Day Forecast Comparison
| Day | San Francisco | Long Beach | Better |
|---|---|---|---|
| Today | AQI 55 | AQI 53 | Long Beach |