Air Quality in San Francisco, United States

Windy
14.6°C · 65.5% humidity
14.6°
Feels 14.6°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
95 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
16 1pm
16
16
20 4pm
16
16
16 7pm
16
16
16 10pm
16
16
16 1am
16
16
16 4am
16
16
0 7am
0
0
0 10am
16
16
Station readings
10
CAMS model adj -38
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
34
34
34
34
54
54
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.

65.5%
Humidity
126.4 km/h
Wind WNW
1016.5 hPa
Pressure
7.9
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
20
4.7 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
PM2.54.7 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX7.9
Very High
AD 300×250
Station readings (95 stations within 25 km)
4.7
Median
5.0
Average
2.51
Low
28.3
High
PM2.5 µg/m³ · Model: 9.65 · Bias: +4.9

What is the 7-day forecast for San Francisco?

06-08
13.8° 12.4°
0.06 mm
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°
Both models agree Avg diff: 2.5°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
17
UCSF Mount Zion
2.1 km PM2.5: 4.1 µg/m³
23
Broadway St. & Stockton St. (BC)
2.6 km PM2.5: 5.6 µg/m³
20
UCSF Mission Bay
2.9 km PM2.5: 4.8 µg/m³
18
UCSF Parnassus
3.8 km PM2.5: 4.4 µg/m³
22
ATB Jerrold Ave. San Francisco, Ca 94124
5.0 km PM2.5: 5.2 µg/m³
22
Oakdale Ave. & 3rd St. (BC)
5.2 km PM2.5: 5.2 µg/m³
21
ATB Hawkins Lane. San Francisco, Ca 94124
5.6 km PM2.5: 5.1 µg/m³

What cities are near San Francisco?

20 Mission District 20 Noe Valley 21 Bayview-Hunters Point 20 Visitacion Valley 18 Parkside 20 Daly City 24 South San Francisco 20 Oakland 21 Alameda 18 San Bruno
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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 2026-06-08T23:27 UTC.