Air Quality in Sunnyvale, United States
Partly Cloudy
27.1°C · 51.8% humidity
27.1°
Feels 29.2°
19
Good
Air quality is satisfactory. Enjoy outdoor activities.
10 stations
Nearby Monitoring Stations
AQI Forecast
54
7am
34
34
19
10am
21
23
24
1pm
25
25
26
4pm
26
26
27
7pm
27
27
34
10pm
34
34
34
1am
34
34
34
4am
34
34
Air Quality Index Trend
45h · 103 stnSunnyvale's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
51.8%
Humidity
27.7 km/h
Wind WNW
1016.2 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
4.59 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Sunnyvale?
Temperature & Precipitation
PM2.5 Trend
45h · 103 stationsPM2.54.59 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX9.4
Very High
Station readings (10 stations within 25 km)
4.59
Median
4.84
Average
3.17
Low
7.2
High
PM2.5 µg/m³ · Model: 6.5 · Bias: +1.9
Both models agree
Avg diff: 3.9°C
Where are air quality stations near Sunnyvale?
17
Cupertino City Hall
18
N Foothhill Blvd
23
JFK Middle School
15
Environment Education Center
23
Acterra!
30
San Jose - Jackson St, Santa Clara, California
13
Berkeley-Palo Alto
25
Cristo Rey Jesuit High School
18
Redwood City, San Mateo, California
7
Redwood City, San Mateo, California
What cities are near Sunnyvale?
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T17:28 UTC.