Be the first to measure and contribute air quality data to your community
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in San Jose
Air quality index (AQI) and PM2.5 air pollution in San Jose
5 people follow this city
San Jose Air Quality Map
Real-time San Jose air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Weather
What is the current weather in San Jose?
| Weather | Broken clouds |
| Temperature | 104°F |
| Humidity | 17% |
| Wind | 6.9 mp/h |
| Pressure | 29.6 Hg |
live aqi city ranking
Real-time Guatemala city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Guatemala City, Guatemala | 129 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
64*
live AQI index
Moderate
Overview
What is the current air quality in San Jose?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 64* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 18.5*µg/m³ | |
!
PM2.5
x3.7
PM2.5 concentration in San Jose is currently 3.7 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in San Jose?
 | 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
San Jose air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Moderate 64 AQI US | | 104° 71.6° |  8.9 mp/h |
| Saturday, May 4 | Good 50 AQI US  |  | 105.8° 68° | 8.9 mp/h |
| Sunday, May 5 | Good 46 AQI US |  | 107.6° 71.6° | 8.9 mp/h |
| Monday, May 6 | Good 42 AQI US | | 105.8° 71.6° | 6.7 mp/h |
| Tuesday, May 7 | Good 47 AQI US | | 107.6° 71.6° | 6.7 mp/h |
| Wednesday, May 8 | Moderate 71 AQI US | | 107.6° 71.6° | 8.9 mp/h |
| Thursday, May 9 | Moderate 77 AQI US | | 107.6° 73.4° | 8.9 mp/h |
| Friday, May 10 | Moderate 80 AQI US | | 113° 77° | 8.9 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Where is the cleanest air quality in San Jose?
No locations are available.
AQI US, Metric