World

San Francisco

Add

Air quality in San Francisco

Air quality index (AQI⁺) and PM2.5 air pollution in San Francisco • 1.1M Followers • 20:00, Sep 17 Local time

US AQI⁺

Good

Main pollutant:

PM2.5

5.4 µg/m³

16°

15 km/h

85 %

Hourly forecast

San Francisco air quality index (AQI⁺) forecast

Now

16°

km/h

85%

21:00

16°

km/h

84%

22:00

16°

km/h

92%

23:00

15°

km/h

92%

Fri

00:00

15°

km/h

92%

01:00

15°

km/h

91%

02:00

14°

km/h

94%

03:00

14°

km/h

95%

04:00

80%

14°

km/h

98%

05:00

80%

13°

km/h

97%

06:00

13°

km/h

97%

07:00

70%

13°

km/h

97%

08:00

13°

km/h

97%

09:00

14°

km/h

96%

10:00

14°

km/h

95%

11:00

15°

km/h

95%

12:00

16°

km/h

94%

13:00

16°

km/h

94%

14:00

16°

km/h

87%

15:00

17°

km/h

74%

16:00

17°

km/h

74%

17:00

17°

km/h

77%

18:00

16°

km/h

83%

19:00

15°

km/h

88%

20:00

14°

km/h

93%

21:00

14°

km/h

93%

22:00

14°

km/h

94%

23:00

80%

13°

km/h

97%

Sat

00:00

90%

13°

km/h

98%

01:00

90%

13°

km/h

98%

02:00

80%

13°

km/h

98%

03:00

13°

km/h

98%

04:00

80%

13°

km/h

98%

05:00

80%

13°

km/h

98%

06:00

13°

km/h

98%

07:00

80%

13°

km/h

98%

08:00

80%

13°

km/h

98%

09:00

13°

km/h

97%

10:00

80%

14°

km/h

96%

11:00

80%

15°

km/h

95%

12:00

15°

km/h

94%

13:00

16°

km/h

94%

14:00

16°

km/h

85%

15:00

17°

km/h

74%

16:00

16°

km/h

75%

17:00

16°

km/h

79%

18:00

18°

km/h

73%

19:00

17°

km/h

78%

20:00

16°

km/h

84%

21:00

16°

km/h

87%

22:00

16°

km/h

88%

23:00

15°

km/h

89%

Sun

00:00

15°

km/h

89%

01:00

15°

km/h

87%

02:00

15°

km/h

87%

03:00

15°

km/h

87%

04:00

15°

km/h

87%

05:00

15°

km/h

87%

06:00

15°

km/h

86%

07:00

15°

km/h

85%

08:00

15°

km/h

85%

09:00

15°

km/h

83%

10:00

16°

km/h

81%

11:00

16°

km/h

79%

12:00

17°

km/h

77%

13:00

17°

km/h

77%

14:00

17°

km/h

80%

15:00

17°

km/h

81%

16:00

17°

km/h

79%

17:00

17°

km/h

80%

18:00

16°

km/h

82%

19:00

16°

km/h

85%

Daily forecast

San Francisco air quality index (AQI⁺) forecast

Today

17°

13°

km/h

90%

Fri

18°

13°

km/h

88%

Sat

17°

15°

km/h

82%

Air pollutants

What is the current air quality in San Francisco?

PM2.5 concentration is currently 1.1 times the World Health Organization annual PM2.5 guideline value.

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	42
2	1377 29th Ave	41
3	1333 Jones St.	38
4	100-200 Colby St	36
5	1108-1126 Cabrillo St	35
6	1034-1064 14th St	34
7	100 Block Andover	31
8	116 Marietta Drive	28
9	12th Ave	25
10	10th and Fulton Deck	13

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Crestline, California	106
2	Redlands, California	105
3	Hesperia, California	104
4	Victorville, California	104
5	Glenn, California	92
6	Las Cruces, New Mexico	91
7	Bowling Green, Ohio	87
8	San Bernardino County, California	86
9	Sitka, Alaska	85
10	Middletown, Ohio	78

History

Historic air quality graph for San Francisco

30 AQI⁺ US

Good

19:00–20:00 Sep 17 Local time

AQI⁺ US

History

Historic air quality graph for San Francisco

30 AQI⁺ US

Good

19:00–20:00 Sep 17 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	42
2	1377 29th Ave	41
3	1333 Jones St.	38
4	100-200 Colby St	36
5	1108-1126 Cabrillo St	35
6	1034-1064 14th St	34
7	100 Block Andover	31
8	116 Marietta Drive	28
9	12th Ave	25
10	10th and Fulton Deck	13

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Crestline, California	106
2	Redlands, California	105
3	Hesperia, California	104
4	Victorville, California	104
5	Glenn, California	92
6	Las Cruces, New Mexico	91
7	Bowling Green, Ohio	87
8	San Bernardino County, California	86
9	Sitka, Alaska	85
10	Middletown, Ohio	78