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Air quality in San Francisco

Air quality index (AQI⁺) and PM2.5 air pollution in San Francisco • 1.1M Followers • 09:00, Sep 18 Local time

US AQI⁺

Good

Main pollutant:

PM2.5

3 µg/m³

17°

1 km/h

74 %

Hourly forecast

San Francisco air quality index (AQI⁺) forecast

Now

17°

km/h

74%

11:00

18°

km/h

69%

12:00

18°

km/h

68%

13:00

18°

km/h

71%

14:00

19°

km/h

67%

15:00

19°

km/h

70%

16:00

18°

km/h

74%

17:00

17°

km/h

77%

18:00

16°

km/h

83%

19:00

16°

km/h

89%

20:00

15°

km/h

91%

21:00

15°

km/h

92%

22:00

14°

km/h

97%

23:00

70%

14°

km/h

97%

Sat

00:00

14°

km/h

97%

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

13°

km/h

96%

10:00

14°

km/h

95%

11:00

16°

km/h

79%

12:00

17°

km/h

71%

13:00

17°

km/h

71%

14:00

18°

km/h

68%

15:00

18°

km/h

68%

16:00

17°

km/h

70%

17:00

17°

km/h

76%

18:00

16°

km/h

83%

19:00

15°

km/h

87%

20:00

14°

km/h

89%

21:00

14°

km/h

92%

22:00

13°

km/h

93%

23:00

13°

km/h

94%

Sun

00:00

13°

km/h

95%

01:00

13°

km/h

95%

02:00

70%

13°

km/h

95%

03:00

13°

km/h

96%

04:00

13°

km/h

97%

05:00

70%

13°

km/h

95%

06:00

15°

km/h

87%

07:00

15°

km/h

86%

08:00

15°

km/h

86%

09:00

16°

km/h

85%

10:00

16°

km/h

84%

11:00

17°

km/h

78%

12:00

17°

km/h

76%

13:00

18°

km/h

76%

14:00

17°

km/h

81%

15:00

17°

km/h

80%

16:00

17°

km/h

79%

17:00

17°

km/h

80%

18:00

17°

km/h

82%

19:00

16°

km/h

87%

20:00

15°

km/h

88%

21:00

15°

km/h

87%

22:00

15°

km/h

86%

23:00

15°

km/h

87%

Mon

00:00

15°

km/h

87%

01:00

15°

km/h

87%

02:00

15°

km/h

87%

03:00

15°

km/h

85%

04:00

15°

km/h

84%

05:00

15°

km/h

84%

06:00

15°

km/h

82%

07:00

15°

km/h

81%

08:00

16°

km/h

80%

09:00

16°

km/h

77%

Daily forecast

San Francisco air quality index (AQI⁺) forecast

Today

19°

14°

km/h

82%

Sat

18°

13°

km/h

84%

Sun

18°

15°

km/h

83%

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

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

Pollen

What is the pollen count in San Francisco today?

Index

Moderate

Tree

None

Grass

None

Weed

Moderate

50%

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

Moderate

Tree

None

Grass

None

Weed

Moderate

50%

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	26
2	1108-1126 Cabrillo St	23
3	100-200 Colby St	22
4	116 Marietta Drive	19
5	1377 29th Ave	19
6	100 Block Andover	18
7	12th Ave	18
8	1333 Jones St.	18
9	1034-1064 14th St	13
10	10th and Fulton Deck	1

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Mono, California	109
2	Montgomery County, North Carolina	87
3	Helena, Montana	84
4	El Portal, California	77
5	Gardnerville Ranchos, Nevada	77
6	Bear Valley, Alpine County, California	75
7	Beaumont, California	75
8	Alpine County, California	73
9	Huntsville, Alabama	72
10	Crestline, California	71

History

Historic air quality graph for San Francisco

17 AQI⁺ US

Good

08:00–09:00 Sep 18 Local time

AQI⁺ US

History

Historic air quality graph for San Francisco

17 AQI⁺ US

Good

08:00–09:00 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	26
2	1108-1126 Cabrillo St	23
3	100-200 Colby St	22
4	116 Marietta Drive	19
5	1377 29th Ave	19
6	100 Block Andover	18
7	12th Ave	18
8	1333 Jones St.	18
9	1034-1064 14th St	13
10	10th and Fulton Deck	1

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Mono, California	109
2	Montgomery County, North Carolina	87
3	Helena, Montana	84
4	El Portal, California	77
5	Gardnerville Ranchos, Nevada	77
6	Bear Valley, Alpine County, California	75
7	Beaumont, California	75
8	Alpine County, California	73
9	Huntsville, Alabama	72
10	Crestline, California	71