What is the air quality in San Bruno today?

The current Air Quality Index (AQI) in San Bruno is 18 (Good). PM2.5 concentration is 4.38 µg/m³.

What is the temperature in San Bruno right now?

The current temperature in San Bruno is 16.7°C (feels like 16.7°C). Humidity is 66.1% and wind speed is 26.2 km/h.

Is it safe to go outside in San Bruno?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in San Bruno, United States

Partly Cloudy

16.7°C · 66.1% humidity

16.7°

Feels 16.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

66 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings 4h ago

AQI 0

PM2.5 0.0 µg/m³ · 4h ago

Air Quality Index Trend

32h · 1 stn

View full history →

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.

66.1%

Humidity

26.2 km/h

Wind WSW

1019.1 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.38 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for San Bruno?

Temperature & Precipitation

PM2.5 Trend

32h · 1 station

PM2.54.38 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (66 stations within 25 km)

4.38

Median

4.81

Average

3.13

Low

11.0

High

PM2.5 µg/m³ · Model: 5.8 · Bias: +1.4

What is the 7-day forecast for San Bruno?

10-20

20.3° 14.6°

10-21

19.8° 14.9°

0.62 mm

10-22

20.1° 14.0°

10-23

19.2° 15.1°

10-24

18.4° 14.5°

10-25

19.2° 14.5°

3.25 mm

10-26

20.1° 14.6°

Both models agree Avg diff: 2.2°C

Where are air quality stations near San Bruno?

Forest Lane Park

0.6 km PM2.5: 4.6 µg/m³

7th & Walnut Park

0.6 km PM2.5: 4.4 µg/m³

San Bruno City Hall

0.7 km PM2.5: 4.2 µg/m³

Belle Air School

0.9 km PM2.5: 3.9 µg/m³

San Bruno School District Office

0.9 km PM2.5: 4.1 µg/m³

Pacific Ave Residence

1.0 km PM2.5: 4.6 µg/m³

Garden Ave Residence

1.1 km PM2.5: 4.2 µg/m³

Parkside Intermediate School

1.7 km PM2.5: 4.1 µg/m³

Brentwood Park

2.1 km PM2.5: 3.9 µg/m³

Rise South City Office

2.8 km PM2.5: 5.5 µg/m³

What cities are near San Bruno?

21 South San Francisco 18 Millbrae 19 Burlingame 18 Pacifica 19 Daly City 19 Visitacion Valley 20 San Mateo 19 Bayview-Hunters Point 20 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 2026-10-20T20:57 UTC.