Air Quality in San Bruno, United States

Cloudy
13.8°C · 78.2% humidity
13.8°
Feels 13.8°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
62 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
10 7am
10
10
25 10am
21
18
16 1pm
14
13
12 4pm
11
18
18 7pm
18
17
17 10pm
17
17
17 1am
17
17
17 4am
17
17
Station readings
8
18
6
CAMS model adj -17
27
27
27
27
27
27
27
27
27
27
27
34
34
34
34
34
34
34
34
34
34
34
34
34
AD 728×90

Air Quality Index Trend

35h · 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.

78.2%
Humidity
38.1 km/h
Wind SW
1014.3 hPa
Pressure
6.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
25
5.87 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for San Bruno?

Temperature & Precipitation

PM2.5 Trend

35h · 1 station
PM2.55.87 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX6.9
High
AD 300×250
Station readings (62 stations within 25 km)
5.87
Median
5.19
Average
2.35
Low
10.41
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +0.4

What is the 7-day forecast for San Bruno?

05-29
15.4° 12.3°
05-30
14.0° 12.3°
05-31
16.6° 13.7°
0.25 mm
06-01
16.5° 12.6°
0.06 mm
06-02
15.0° 11.8°
0.06 mm
06-03
15.5° 11.1°
0.06 mm
06-04
17.1° 11.1°
Both models agree Avg diff: 1.9°C

Where are air quality stations near San Bruno?

27
Belle Air School
0.9 km PM2.5: 6.4 µg/m³
28
Parkside Intermediate School (redeployment)
1.7 km PM2.5: 6.6 µg/m³
21
Parkside Intermediate School
1.8 km PM2.5: 5.1 µg/m³
18
Brentwood Park
2.1 km PM2.5: 4.3 µg/m³
43
Rise South City Office
2.8 km PM2.5: 10.4 µg/m³
19
Rollingwood Elementary
2.9 km PM2.5: 4.6 µg/m³
21
Orange Memorial Park
3.0 km PM2.5: 5.1 µg/m³
19
Grand and Magnolia St
3.1 km PM2.5: 4.6 µg/m³
21
California and Cypress Ave
3.1 km PM2.5: 5.1 µg/m³
20
California and Hawthorn Pl
3.1 km PM2.5: 4.9 µg/m³

What cities are near San Bruno?

28 South San Francisco 23 Millbrae 23 Burlingame 22 Pacifica 22 Daly City 23 Visitacion Valley 23 San Mateo 23 Bayview-Hunters Point 21 Noe Valley 19 Parkside
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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 2026-05-29T17:41 UTC.