Air Quality in San Bruno, United States

Cloudy
22.2°C · 70.8% humidity
22.2°
Feels 22.2°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
61 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
11 6am
11
11
25 9am
21
18
16 12pm
15
14
13 3pm
5
5
12 6pm
11
11
11 9pm
11
11
11 12am
11
11
11 3am
11
4
Station readings
10
15
12
CAMS model adj -23
34
34
34
34
34
34
34
34
34
34
27
27
34
34
34
34
34
34
34
34
34
34
34
27
AD 728×90

Air Quality Index Trend

42h · 1 stn

San Bruno's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

70.8%
Humidity
4.1 km/h
Wind NNE
1016.4 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
25
5.99 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for San Bruno?

Temperature & Precipitation

PM2.5 Trend

42h · 1 station
PM2.55.99 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
Station readings (61 stations within 25 km)
5.99
Median
6.04
Average
1.7
Low
8.96
High
PM2.5 µg/m³ · Model: 7.1 · Bias: +1.1

What is the 7-day forecast for San Bruno?

09-05
22.2° 14.4°
09-06
20.8° 15.9°
0.06 mm
09-07
19.9° 14.3°
09-08
20.9° 15.2°
09-09
19.5° 15.6°
0.06 mm
09-10
18.0° 15.3°
09-11
17.5° 15.5°
0.13 mm
Both models agree Avg diff: 2.2°C

Where are air quality stations near San Bruno?

23
Belle Air School
0.9 km PM2.5: 5.5 µg/m³
24
San Bruno School District Office
0.9 km PM2.5: 5.8 µg/m³
27
Pacific Ave Residence
1.0 km PM2.5: 6.4 µg/m³
26
Garden Ave Residence
1.1 km PM2.5: 6.3 µg/m³
26
Parkside Intermediate School
1.7 km PM2.5: 6.3 µg/m³
22
Brentwood Park
2.1 km PM2.5: 5.2 µg/m³
30
Rise South City Office
2.8 km PM2.5: 7.3 µg/m³
21
Rollingwood Elementary
2.9 km PM2.5: 5.1 µg/m³
23
Orange Memorial Park
3.0 km PM2.5: 5.6 µg/m³
22
Grand and Magnolia St
3.1 km PM2.5: 5.3 µg/m³

What cities are near San Bruno?

28 South San Francisco 25 Millbrae 25 Burlingame 24 Pacifica 25 Daly City 28 Visitacion Valley 25 San Mateo 30 Bayview-Hunters Point 25 Noe Valley 22 Parkside
Get AQI alerts for San Bruno

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T16:40 UTC.