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Air quality in San Francisco

Air quality index (AQI⁺) and PM2.5 air pollution in San Francisco • 1.1M Followers • 20:00, Sep 18 Local time

US AQI⁺

Good

Main pollutant:

PM2.5

4.7 µg/m³

16°

21 km/h

89 %

Hourly forecast

San Francisco air quality index (AQI⁺) forecast

Now

16°

km/h

89%

21:00

15°

km/h

92%

22:00

15°

km/h

93%

23:00

14°

km/h

92%

Sat

00:00

14°

km/h

93%

01:00

80%

14°

km/h

97%

02:00

80%

13°

km/h

97%

03:00

13°

km/h

97%

04:00

80%

13°

km/h

97%

05:00

80%

13°

km/h

97%

06:00

13°

km/h

97%

07:00

80%

13°

km/h

97%

08:00

80%

13°

km/h

97%

09:00

14°

km/h

96%

10:00

70%

14°

km/h

96%

11:00

15°

km/h

95%

12:00

17°

km/h

77%

13:00

17°

km/h

73%

14:00

17°

km/h

73%

15:00

17°

km/h

72%

16:00

17°

km/h

74%

17:00

16°

km/h

77%

18:00

16°

km/h

82%

19:00

15°

km/h

88%

20:00

14°

km/h

91%

21:00

14°

km/h

93%

22:00

13°

km/h

94%

23:00

70%

13°

km/h

95%

Sun

00:00

13°

km/h

95%

01:00

80%

13°

km/h

96%

02:00

80%

13°

km/h

95%

03:00

13°

km/h

96%

04:00

80%

13°

km/h

96%

05:00

80%

13°

km/h

96%

06:00

13°

km/h

96%

07:00

13°

km/h

97%

08:00

70%

13°

km/h

94%

09:00

14°

km/h

96%

10:00

80%

14°

km/h

97%

11:00

80%

14°

km/h

96%

12:00

15°

km/h

96%

13:00

80%

15°

km/h

95%

14:00

80%

15°

km/h

95%

15:00

15°

km/h

96%

16:00

80%

15°

km/h

96%

17:00

80%

14°

km/h

97%

18:00

16°

km/h

83%

19:00

16°

km/h

83%

20:00

16°

km/h

87%

21:00

15°

km/h

89%

22:00

15°

km/h

87%

23:00

15°

km/h

87%

Mon

00:00

15°

km/h

87%

01:00

15°

km/h

86%

02:00

15°

km/h

86%

03:00

15°

km/h

86%

04:00

15°

km/h

85%

05:00

15°

km/h

84%

06:00

15°

km/h

82%

07:00

15°

km/h

82%

08:00

16°

km/h

82%

09:00

16°

km/h

80%

10:00

17°

km/h

77%

11:00

18°

km/h

73%

12:00

18°

km/h

70%

13:00

19°

km/h

71%

14:00

19°

km/h

72%

15:00

18°

km/h

74%

16:00

18°

km/h

76%

17:00

18°

km/h

79%

18:00

17°

km/h

82%

19:00

16°

km/h

83%

Daily forecast

San Francisco air quality index (AQI⁺) forecast

Today

17°

13°

km/h

87%

Sat

80%

16°

13°

km/h

93%

Sun

19°

15°

km/h

79%

Air pollutants

What is the current air quality in San Francisco?

PM2.5 concentration currently meets the WHO annual PM2.5 guideline.

Real-time San Francisco air pollution map

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Protect yourself from air pollution in San Francisco

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Monitor the air you breathe

Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.

AirVisual Series

Medical grade air purifiers

Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.

HealthPro Series

Powerful, stylish air purifiers

Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.

Atem Series

Pollen

What is the pollen count in San Francisco today?

Index

Low

Tree

None

Grass

None

Weed

Low

25%

Source:

wetter.com

Pollen forecast in San Francisco

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Real-time San Francisco air pollution map

Pollen

What is the pollen count in San Francisco today?

Index

Low

Tree

None

Grass

None

Weed

Low

25%

Source:

wetter.com

Pollen forecast in San Francisco

Protect yourself from air pollution in San Francisco

SHOP IQAIR PRODUCTS

Monitor the air you breathe

Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.

AirVisual Series

Medical grade air purifiers

Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.

HealthPro Series

Powerful, stylish air purifiers

Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.

Atem Series

Most polluted locations near San Francisco

Worldwide AQI⁺ ranking

Station ranking

Real-time AQI⁺ station ranking for stations in San Francisco

#	Stations	AQI⁺ US
1	100-200 Maynard St	37
2	1333 Jones St.	37
3	1377 29th Ave	32
4	100-200 Colby St	31
5	1034-1064 14th St	28
6	144 Funston Avenue	28
7	100 Block Andover	26
8	116 Marietta Drive	26
9	12th Ave	24
10	1108-1126 Cabrillo St	23

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Calexico, California	108
2	Crestline, California	106
3	Redlands, California	103
4	Glendora, California	102
5	Hesperia, California	102
6	Victorville, California	102
7	Sunland Park, New Mexico	101
8	Palm Springs, California	98
9	Eddy County, New Mexico	95
10	Lancaster, California	95

History

Historic air quality graph for San Francisco

26 AQI⁺ US

Good

19:00–20:00 Sep 18 Local time

AQI⁺ US

History

Historic air quality graph for San Francisco

26 AQI⁺ US

Good

19:00–20:00 Sep 18 Local time

AQI⁺ US

Most polluted locations near San Francisco

Worldwide AQI⁺ ranking

Station ranking

Real-time AQI⁺ station ranking for stations in San Francisco

#	Stations	AQI⁺ US
1	100-200 Maynard St	37
2	1333 Jones St.	37
3	1377 29th Ave	32
4	100-200 Colby St	31
5	1034-1064 14th St	28
6	144 Funston Avenue	28
7	100 Block Andover	26
8	116 Marietta Drive	26
9	12th Ave	24
10	1108-1126 Cabrillo St	23

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Calexico, California	108
2	Crestline, California	106
3	Redlands, California	103
4	Glendora, California	102
5	Hesperia, California	102
6	Victorville, California	102
7	Sunland Park, New Mexico	101
8	Palm Springs, California	98
9	Eddy County, New Mexico	95
10	Lancaster, California	95