San Diego vs Sacramento Air Quality Comparison
Which city has cleaner air right now, from the latest EPA AirNow AQI
As of November 8, 2026, San Diego, CA has cleaner air than Sacramento, CA — AQI 34 (Good) vs 75 (Moderate), a gap of 41 AQI points in the latest EPA AirNow observations. Lower AQI means cleaner air. San Diego's reading is driven by O3 and Sacramento's by PM2.5.
San Diego, CA
Good
Sacramento, CA
Moderate
Summary
San Diego has 41 points better air quality
San Diego has an AQI of 34 compared to 75
Extra Protection for Sacramento Homes
Air quality in Sacramento is moderate (AQI 75), 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.
Compare top-rated True-HEPA purifiers:
Prices are approximate and subject to change. As an Amazon Associate, we earn from qualifying purchases at no extra cost to you.
5-Day Forecast Comparison
| Day | San Diego | Sacramento | Better |
|---|---|---|---|
| Today | AQI 54 | AQI 73 | San Diego |
| Sun, Nov 8 | AQI 61 | AQI 64 | San Diego |