Air Quality in San Francisco, United States

Windy
12.3°C · 78.6% humidity
12.3°
Feels 12.3°
21
Good
Air quality is satisfactory. Enjoy outdoor activities.
97 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
12 5pm
12
12
21 8pm
18
17
15 11pm
14
14
13 2am
13
13
12 5am
12
0
0 8am
0
0
12 11am
12
12
0 2pm
0
0
Station readings
23
16
13
12
CAMS model adj -42
54
54
54
54
54
54
54
54
54
54
54
54
54
54
34
34
34
34
54
54
54
34
34
34
AD 728×90

Air Quality Index Trend

43h · 1 stn

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

78.6%
Humidity
73.9 km/h
Wind WNW
1016.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
21
5.04 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for San Francisco?

Temperature & Precipitation

PM2.5 Trend

43h · 1 station
PM2.55.04 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (97 stations within 25 km)
5.04
Median
5.0
Average
3.26
Low
12.19
High
PM2.5 µg/m³ · Model: 9.65 · Bias: +4.6

What is the 7-day forecast for San Francisco?

06-09
14.6° 12.3°
06-10
16.5° 13.0°
06-11
17.4° 13.2°
06-12
16.1° 12.3°
0.13 mm
06-13
15.2° 11.8°
06-14
18.3° 13.0°
06-15
16.3° 12.0°
Both models agree Avg diff: 2.6°C

Where are air quality stations near San Francisco?

47
Howard St. & 6th St. (BC)
1.1 km PM2.5: 11.3 µg/m³
38
Eddy St. & Jones St. (BC)
1.2 km PM2.5: 9.2 µg/m³
42
San Francisco-Arkansas Street, San Francisco, California
2.1 km PM2.5: 10.1 µg/m³
23
UCSF Mount Zion
2.1 km PM2.5: 5.4 µg/m³
25
Broadway St. & Stockton St. (BC)
2.6 km PM2.5: 6.1 µg/m³
20
UCSF Mission Bay
2.9 km PM2.5: 4.9 µg/m³
20
UCSF Parnassus
3.8 km PM2.5: 4.8 µg/m³
26
ATB Jerrold Ave. San Francisco, Ca 94124
5.0 km PM2.5: 6.3 µg/m³
26
Oakdale Ave. & 3rd St. (BC)
5.2 km PM2.5: 6.2 µg/m³
25
ATB Hawkins Lane. San Francisco, Ca 94124
5.6 km PM2.5: 6.1 µg/m³

What cities are near San Francisco?

21 Mission District 22 Noe Valley 25 Bayview-Hunters Point 23 Visitacion Valley 20 Parkside 22 Daly City 29 South San Francisco 20 Oakland 20 Alameda 21 San Bruno
Get AQI alerts for San Francisco

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 2026-06-09T03:15 UTC.