Air Quality in Sunnyvale, United States

Partly Cloudy
27.1°C · 51.8% humidity
27.1°
Feels 29.2°
18
Good
Air quality is satisfactory. Enjoy outdoor activities.
10 stations

Nearby Monitoring Stations

AQI Forecast
34 6am
54
34
18 9am
16
19
21 12pm
23
24
25 3pm
25
26
26 6pm
26
27
27 9pm
34
34
34 12am
34
34
34 3am
34
34
AD 728×90

Air Quality Index Trend

45h · 102 stn

Sunnyvale'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
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
18
4.21 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Sunnyvale?

Temperature & Precipitation

PM2.5 Trend

45h · 102 stations
PM2.54.21 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
Station readings (10 stations within 25 km)
4.21
Median
4.13
Average
1.7
Low
5.92
High
PM2.5 µg/m³ · Model: 7.35 · Bias: +3.1

What is the 7-day forecast for Sunnyvale?

09-05
31.5° 17.2°
09-06
31.6° 18.6°
09-07
34.4° 15.7°
09-08
32.8° 16.2°
09-09
30.5° 18.5°
09-10
28.9° 16.2°
09-11
27.4° 19.0°
Both models agree Avg diff: 3.9°C

Where are air quality stations near Sunnyvale?

16
Cupertino City Hall
5.6 km PM2.5: 3.9 µg/m³
17
N Foothhill Blvd
5.8 km PM2.5: 4.1 µg/m³
22
JFK Middle School
6.6 km PM2.5: 5.3 µg/m³
15
Environment Education Center
6.6 km PM2.5: 3.5 µg/m³
22
Acterra!
9.2 km PM2.5: 5.2 µg/m³
34
San Jose - Jackson St, Santa Clara, California
12.7 km PM2.5: 8.2 µg/m³
17
San Jose - Jackson St, Santa Clara, California
12.7 km PM2.5: 4.1 µg/m³
12
Berkeley-Palo Alto
13.6 km PM2.5: 3.0 µg/m³
25
Cristo Rey Jesuit High School
15.4 km PM2.5: 5.9 µg/m³
7
Redwood City, San Mateo, California
19.5 km PM2.5: 1.7 µg/m³

What cities are near Sunnyvale?

18 Mountain View 17 Cupertino 18 Los Altos 18 Santa Clara 18 Saratoga 19 Campbell 14 Palo Alto 18 San Jose 19 Milpitas 13 East Palo Alto
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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 2026-09-05T16:32 UTC.