Air quality in San Jose
The US Air Quality Index (EPA) grades air from 0 to 500 using fine particles (PM2.5/PM10), ozone and nitrogen dioxide. 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and anything higher affects everyone.
PM2.5
20.8 µg/m³
WHO guideline 15
PM10
28 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
8:00 AM
💨
PM2.5 20.8 µg/m³
69 Moderate
9:00 AM
💨
PM2.5 17.9 µg/m³
63 Moderate
10:00 AM
💨
PM2.5 16.6 µg/m³
60 Moderate
11:00 AM
💨
PM2.5 15.6 µg/m³
58 Moderate
12:00 PM
💨
PM2.5 15.2 µg/m³
58 Moderate
1:00 PM
💨
PM2.5 14.9 µg/m³
57 Moderate
2:00 PM
💨
PM2.5 14.7 µg/m³
60 Moderate
3:00 PM
💨
PM2.5 14.6 µg/m³
61 Moderate
4:00 PM
💨
PM2.5 14.4 µg/m³
58 Moderate
5:00 PM
💨
PM2.5 14.5 µg/m³
56 Moderate
6:00 PM
💨
PM2.5 14.5 µg/m³
56 Moderate
7:00 PM
💨
PM2.5 14.6 µg/m³
56 Moderate
Next few days daily max · US EPA AQI
Fri
💨
Moderate · UV Moderate
70
Sat
💨
Moderate · UV Moderate
56
Sun
💨
Moderate · UV Moderate
63
Mon
💨
Moderate · UV Moderate
60
Tue
💨
Moderate · UV High
55
JavaScript is needed for the map — the city links below work without it.
Precip NEXRAD · NOAA Temp Wind Clouds Terrain