Air Quality in San Jose, United States

Rain
18.1°C · 67.2% humidity
18.1°
Feels 18.1°
16
Good
Air quality is satisfactory. Enjoy outdoor activities.
6 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
15 10pm
15
11
24 1am
24
24
24 4am
24
36
49 7am
49
74
74 10am
74
49
24 1pm
36
24
24 4pm
24
24
24 7pm
24
24
Station readings
15
15
CAMS model adj -1
25
25
12
25
25
25
25
25
37
50
50
75
75
75
50
25
37
25
25
25
25
25
25
25
AD 728×90

PM2.5 Trend (24h)

23h · 77 stations
67.2%
Humidity
34.9 km/h
Wind W
1009.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for San Jose?

Temperature & Precipitation

PM2.53.88 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (6 stations within 25 km)
3.88
Median
4.05
Average
3.39
Low
4.98
High
PM2.5 µg/m³ · Model: 8.9 · Bias: +5.0

What is the 7-day forecast for San Jose?

04-10
18.7° 12.1°
2.94 mm
04-11
19.3° 11.5°
0.06 mm
04-12
13.2° 9.0°
6.75 mm
04-13
14.8° 7.6°
0.25 mm
04-14
17.7° 8.3°
04-15
20.5° 11.0°
04-16
20.6° 11.0°
Both models agree Avg diff: 2.2°C

Where are air quality stations near San Jose?

29
San Jose - Jackson St, Santa Clara, California
1.0 km
18
Cristo Rey Jesuit High School
3.0 km PM2.5: 4.4 µg/m³
5
San Jose-Knox Avenue, Santa Clara, California
4.0 km
43
San Jose-Knox Avenue, Santa Clara, California
4.0 km
24
Andrew Hill High School
7.8 km PM2.5: 5.8 µg/m³
15
Cupertino City Hall
12.0 km PM2.5: 3.6 µg/m³
18
JFK Middle School
14.1 km PM2.5: 4.2 µg/m³
15
Environment Education Center
15.2 km PM2.5: 3.5 µg/m³
15
N Foothhill Blvd
15.4 km PM2.5: 3.6 µg/m³
13
Acterra!
21.1 km PM2.5: 3.2 µg/m³

What cities are near San Jose?

16 Santa Clara 16 Alum Rock 16 Campbell 16 Milpitas 16 Cupertino 16 Sunnyvale 16 Saratoga 16 Los Gatos 16 Mountain View 16 Los Altos

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-10T01:02 UTC.