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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 | High | |
 | Tree pollen | High | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in California?
| Weather | Broken clouds |
| Temperature | 78.8°F |
| Humidity | 38% |
| Wind | 1 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  San Antonio, Texas | 97 |
| 2 | Baytown, Texas | 81 |
| 3 | Boerne, Texas | 81 |
| 4 | New Braunfels, Texas | 81 |
| 5 | Pahrump, Nevada | 80 |
| 6 | Fontana, California | 79 |
| 7 | San Fernando, California | 78 |
| 8 | San Bernardino, California | 76 |
| 9 | La Crescenta-Montrose, California | 74 |
| 10 | Rancho Cucamonga, California | 73 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
51*
live AQI index
Moderate
Overview
What is the current air quality in California?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 51* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 9.1*µg/m³ | |
!
PM2.5
x1.8
PM2.5 concentration in California is currently 1.8 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 51 AQI US | | 78.8° 46.4° |  4.5 mp/h |
| Sunday, Jun 2 | Moderate 62 AQI US |  90% | 66.2° 57.2° | 6.7 mp/h |
| Monday, Jun 3 | Moderate 67 AQI US | 50% | 78.8° 59° | 2.2 mp/h |
| Tuesday, Jun 4 | Moderate 60 AQI US | | 82.4° 60.8° | 11.2 mp/h |
| Wednesday, Jun 5 | Moderate 65 AQI US | 100% | 69.8° 62.6° | 8.9 mp/h |
| Thursday, Jun 6 | Moderate 57 AQI US | 100% | 80.6° 62.6° | 8.9 mp/h |
| Friday, Jun 7 | Good 22 AQI US  | 30% | 71.6° 53.6° | 11.2 mp/h |
| Saturday, Jun 8 | Good 16 AQI US | 100% | 73.4° 55.4° | 15.7 mp/h |
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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