Air quality in San Francisco

Air quality index (AQI) and PM2.5 air pollution in San Francisco

LAST UPDATE (local time)

2 people follow this city

  • The profile image of follower
  • The profile image of follower
  • The profile image of follower
  • The profile image of follower
  • The profile image of follower
IQAir map with AQI colorful pins

Air Quality contributors Sources

Data provided by

Contributors

1

Data sources

1

IQAir AirVisual logoIQAir AirVisual logo

Join the movement!

Get a monitor and contribute air quality data in your city.

Become a contributor
Find out more about contributors and data sources

Weather

What is the current weather in San Francisco?

Weather icon
WeatherBroken clouds
Temperature68°C
Humidity97%
Wind1.4 mp/h
Pressure1013 mb

live aqi city ranking

Real-time Guatemala city ranking

Tooltip icon
#cityUS AQI
1 San Francisco, Peten

67

2 El Chol, Baja Verapaz

59

3 Antigua Guatemala, Sacatepequez

54

4 San Benito, Peten

46

5 La Libertad, Peten

43

6 Guatemala City, Guatemala

42

7 El Chal, Peten

31

8 San Luis, Peten

25

(local time)

SEE WORLD AQI RANKING

live San Francisco aqi ranking

Real-time San Francisco air quality ranking

Tooltip icon
#stationUS AQI
1 Municipalidad de San Francisco

67

(local time)

SEE WORLD AQI RANKING

US AQI

67

live AQI index
Moderate

Human face indicating AQI level

Overview

What is the current air quality in San Francisco?

Air pollution levelAir quality indexMain pollutant
Moderate 67 US AQItrendPM2.5
PollutantsConcentration
PM2.5
19.9 µg/m³trend
!

PM2.5

x1

PM2.5 concentration in San Francisco air is currently 1 times above WHO exposure recommendation

Health Recommendations

How to protect from air pollution in San Francisco?

An open window iconClose your windows to avoid dirty outdoor air
A man cycling iconSensitive groups should reduce outdoor exercise

Forecast

San Francisco air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Friday, Jul 23

Moderate 71 US AQI

Human face indicating AQI level
Saturday, Jul 24

Moderate 56 US AQI

Human face indicating AQI level
Sunday, Jul 25

Moderate 60 US AQI

Human face indicating AQI level
Monday, Jul 26

Moderate 90 US AQI

Human face indicating AQI level
Weather icon95°68°
Wind rotating 80 degree

4.5 mp/h

Today

Good 25 US AQI

Human face indicating AQI level
Weather icon89.6°68°
Wind rotating 63 degree

4.5 mp/h

Wednesday, Jul 28

Good 20 US AQI

Human face indicating AQI level
Weather icon93.2°69.8°
Wind rotating 146 degree

4.5 mp/h

Thursday, Jul 29

Good 37 US AQI

Human face indicating AQI level
Weather icon91.4°69.8°
Wind rotating 85 degree

2.2 mp/h

Friday, Jul 30

Good 29 US AQI

Human face indicating AQI level
Weather icon82.4°68°
Wind rotating 95 degree

2.2 mp/h

Saturday, Jul 31

Good 28 US AQI

Human face indicating AQI level
Weather icon77°69.8°
Wind rotating 41 degree

4.5 mp/h

Sunday, Aug 1

Good 41 US AQI

Human face indicating AQI level
Weather icon82.4°69.8°
Wind rotating 43 degree

2.2 mp/h

Interested in hourly forecast? Get the app

Historical

Historic air quality graph for San Francisco

How to best protect from air pollution?

Reduce your air pollution exposure in San Francisco

San Francisco air quality data sources

Contributors 1

Data sources 1

Data validated and calibrated by IQAir

Where is the cleanest air quality in San Francisco?

Connect With IQAir

Sign up for our newsletter