San Francisco vs Long Beach Air Quality Comparison
Which city has cleaner air right now, from the latest EPA AirNow AQI
As of November 8, 2026, San Francisco, CA has cleaner air than Long Beach, CA — AQI 13 (Good) vs 51 (Moderate), a gap of 38 AQI points in the latest EPA AirNow observations. Lower AQI means cleaner air. San Francisco's reading is driven by O3 and Long Beach's by PM2.5.
San Francisco, CA
Good
Long Beach, CA
Moderate
Summary
San Francisco has 38 points better air quality
San Francisco has an AQI of 13 compared to 51
Extra Protection for Long Beach Homes
Air quality in Long Beach is moderate (AQI 51), 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 | San Francisco | Long Beach | Better |
|---|---|---|---|
| Today | AQI 55 | AQI 53 | Long Beach |