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Air quality in California
Air quality index (AQI) and PM2.5 air pollution in California
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California Air Quality Map
Real-time California air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in California today?
 | Index | Moderate | |
 | Tree pollen | Moderate | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in California?
| Weather | Clear sky |
| Temperature | 62.6°F |
| Humidity | 96% |
| Wind | 1.5 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Mecca, California | 95 |
| 2 | Corpus Christi, Texas | 91 |
| 3 | San Antonio, Texas | 86 |
| 4 | Cedar Park, Texas | 84 |
| 5 | The Woodlands, Texas | 84 |
| 6 | New Braunfels, Texas | 83 |
| 7 | Georgetown, Texas | 80 |
| 8 | San Bernardino, California | 79 |
| 9 | Austin, Texas | 78 |
| 10 | Boerne, Texas | 77 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
62*
live AQI index
Moderate
Overview
What is the current air quality in California?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 62* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 15.2*µg/m³ | |
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PM2.5
x3
PM2.5 concentration in California is currently 3 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in California?
 | Sensitive groups should reduce outdoor exercise |
 | Close your windows to avoid dirty outdoor air GET A MONITOR |
 | Sensitive groups should wear a mask outdoors GET A MASK |
 | Sensitive groups should run an air purifier GET AN AIR PURIFIER |
Forecast
California air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Moderate 62 AQI US | | 78.8° 57.2° |  4.5 mp/h |
| Monday, May 20 | Moderate 66 AQI US |  | 82.4° 57.2° | 4.5 mp/h |
| Tuesday, May 21 | Moderate 69 AQI US | | 84.2° 59° | 4.5 mp/h |
| Wednesday, May 22 | Moderate 66 AQI US |  40% | 84.2° 60.8° | 11.2 mp/h |
| Thursday, May 23 | Moderate 60 AQI US | 100% | 68° 51.8° | 13.4 mp/h |
| Friday, May 24 | Good 45 AQI US  | | 73.4° 44.6° | 4.5 mp/h |
| Saturday, May 25 | Moderate 67 AQI US | | 82.4° 53.6° | 6.7 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Where is the cleanest air quality in California?
No locations are available.
AQI US, Metric