Air quality in San Francisco

Air quality index (AQI⁺) and PM2.5 air pollution in San Francisco • 575 Followers • 19:00, Apr 23 Local time

19*

US AQI⁺

Good

face expression based on aqi value

Main pollutant:

PM2.5

3.5 µg/m³

weather condition icon

20°

wind direction icon

2 km/h

weather humid icon

99 %

Hourly forecast

San Francisco air quality index (AQI⁺) forecast

Now

19

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20°

IQAir AirVisual Air Quality Map Wind rotating 107 degree

2

km/h

Humidity icon

99%

20:00

19

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20°

IQAir AirVisual Air Quality Map Wind rotating 74 degree

2

km/h

Humidity icon

100%

21:00

20

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20°

IQAir AirVisual Air Quality Map Wind rotating 313 degree

1

km/h

Humidity icon

100%

22:00

21

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80%

20°

IQAir AirVisual Air Quality Map Wind rotating 244 degree

2

km/h

Humidity icon

99%

23:00

22

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20°

IQAir AirVisual Air Quality Map Wind rotating 98 degree

2

km/h

Humidity icon

99%

Fri

00:00

23

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20°

IQAir AirVisual Air Quality Map Wind rotating 165 degree

2

km/h

Humidity icon

99%

01:00

24

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80%

20°

IQAir AirVisual Air Quality Map Wind rotating 190 degree

4

km/h

Humidity icon

99%

02:00

25

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20°

IQAir AirVisual Air Quality Map Wind rotating 119 degree

2

km/h

Humidity icon

99%

03:00

28

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20°

IQAir AirVisual Air Quality Map Wind rotating 150 degree

2

km/h

Humidity icon

98%

04:00

30

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19°

IQAir AirVisual Air Quality Map Wind rotating 203 degree

2

km/h

Humidity icon

98%

05:00

29

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19°

IQAir AirVisual Air Quality Map Wind rotating 183 degree

3

km/h

Humidity icon

98%

06:00

28

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19°

IQAir AirVisual Air Quality Map Wind rotating 176 degree

3

km/h

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98%

07:00

27

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20°

IQAir AirVisual Air Quality Map Wind rotating 166 degree

3

km/h

Humidity icon

96%

08:00

22

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21°

IQAir AirVisual Air Quality Map Wind rotating 180 degree

1

km/h

Humidity icon

91%

09:00

17

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24°

IQAir AirVisual Air Quality Map Wind rotating 27 degree

2

km/h

Humidity icon

78%

10:00

12

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25°

IQAir AirVisual Air Quality Map Wind rotating 14 degree

7

km/h

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70%

11:00

10

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25°

IQAir AirVisual Air Quality Map Wind rotating 348 degree

9

km/h

Humidity icon

72%

12:00

8

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22°

IQAir AirVisual Air Quality Map Wind rotating 346 degree

7

km/h

Humidity icon

89%

13:00

7

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22°

IQAir AirVisual Air Quality Map Wind rotating 324 degree

4

km/h

Humidity icon

90%

14:00

7

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22°

IQAir AirVisual Air Quality Map Wind rotating 2 degree

4

km/h

Humidity icon

91%

15:00

7

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 9 degree

6

km/h

Humidity icon

76%

16:00

8

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24°

IQAir AirVisual Air Quality Map Wind rotating 352 degree

6

km/h

Humidity icon

76%

17:00

8

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23°

IQAir AirVisual Air Quality Map Wind rotating 352 degree

5

km/h

Humidity icon

84%

18:00

8

Weather icon

80%

20°

IQAir AirVisual Air Quality Map Wind rotating 351 degree

3

km/h

Humidity icon

98%

19:00

9

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 346 degree

1

km/h

Humidity icon

100%

20:00

20

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 115 degree

2

km/h

Humidity icon

99%

21:00

32

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20°

IQAir AirVisual Air Quality Map Wind rotating 134 degree

2

km/h

Humidity icon

99%

22:00

44

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20°

IQAir AirVisual Air Quality Map Wind rotating 137 degree

2

km/h

Humidity icon

99%

23:00

42

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 165 degree

2

km/h

Humidity icon

99%

Sat

00:00

41

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 183 degree

4

km/h

Humidity icon

98%

01:00

40

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 192 degree

4

km/h

Humidity icon

98%

02:00

41

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18°

IQAir AirVisual Air Quality Map Wind rotating 198 degree

4

km/h

Humidity icon

97%

03:00

42

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18°

IQAir AirVisual Air Quality Map Wind rotating 200 degree

4

km/h

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96%

04:00

44

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18°

IQAir AirVisual Air Quality Map Wind rotating 206 degree

4

km/h

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96%

05:00

45

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19°

IQAir AirVisual Air Quality Map Wind rotating 197 degree

1

km/h

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95%

06:00

47

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19°

IQAir AirVisual Air Quality Map Wind rotating 192 degree

1

km/h

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95%

07:00

49

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20°

IQAir AirVisual Air Quality Map Wind rotating 79 degree

0

km/h

Humidity icon

93%

08:00

51

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21°

IQAir AirVisual Air Quality Map Wind rotating 352 degree

2

km/h

Humidity icon

89%

09:00

53

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 348 degree

4

km/h

Humidity icon

87%

10:00

56

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 355 degree

6

km/h

Humidity icon

81%

11:00

52

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25°

IQAir AirVisual Air Quality Map Wind rotating 4 degree

9

km/h

Humidity icon

68%

12:00

48

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21°

IQAir AirVisual Air Quality Map Wind rotating 334 degree

5

km/h

Humidity icon

92%

13:00

45

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23°

IQAir AirVisual Air Quality Map Wind rotating 344 degree

4

km/h

Humidity icon

84%

14:00

35

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 351 degree

4

km/h

Humidity icon

80%

15:00

26

Weather icon

80%

22°

IQAir AirVisual Air Quality Map Wind rotating 70 degree

1

km/h

Humidity icon

89%

16:00

17

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22°

IQAir AirVisual Air Quality Map Wind rotating 148 degree

2

km/h

Humidity icon

92%

17:00

14

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22°

IQAir AirVisual Air Quality Map Wind rotating 144 degree

1

km/h

Humidity icon

93%

18:00

12

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21°

IQAir AirVisual Air Quality Map Wind rotating 157 degree

3

km/h

Humidity icon

94%

19:00

10

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21°

IQAir AirVisual Air Quality Map Wind rotating 156 degree

4

km/h

Humidity icon

92%

20:00

14

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20°

IQAir AirVisual Air Quality Map Wind rotating 165 degree

4

km/h

Humidity icon

92%

21:00

18

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20°

IQAir AirVisual Air Quality Map Wind rotating 171 degree

3

km/h

Humidity icon

89%

22:00

23

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 200 degree

3

km/h

Humidity icon

88%

23:00

31

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 206 degree

1

km/h

Humidity icon

86%

Sun

00:00

39

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 193 degree

2

km/h

Humidity icon

86%

01:00

48

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19°

IQAir AirVisual Air Quality Map Wind rotating 182 degree

3

km/h

Humidity icon

85%

02:00

50

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20°

IQAir AirVisual Air Quality Map Wind rotating 166 degree

2

km/h

Humidity icon

80%

03:00

52

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20°

IQAir AirVisual Air Quality Map Wind rotating 178 degree

1

km/h

Humidity icon

78%

04:00

55

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21°

IQAir AirVisual Air Quality Map Wind rotating 165 degree

0

km/h

Humidity icon

77%

05:00

56

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21°

IQAir AirVisual Air Quality Map Wind rotating 239 degree

1

km/h

Humidity icon

77%

06:00

57

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21°

IQAir AirVisual Air Quality Map Wind rotating 300 degree

1

km/h

Humidity icon

77%

07:00

58

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21°

IQAir AirVisual Air Quality Map Wind rotating 20 degree

1

km/h

Humidity icon

77%

08:00

57

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22°

IQAir AirVisual Air Quality Map Wind rotating 38 degree

2

km/h

Humidity icon

71%

09:00

56

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24°

IQAir AirVisual Air Quality Map Wind rotating 34 degree

5

km/h

Humidity icon

65%

10:00

55

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27°

IQAir AirVisual Air Quality Map Wind rotating 21 degree

5

km/h

Humidity icon

55%

11:00

46

Weather icon

29°

IQAir AirVisual Air Quality Map Wind rotating 13 degree

6

km/h

Humidity icon

48%

12:00

37

Weather icon

30°

IQAir AirVisual Air Quality Map Wind rotating 7 degree

7

km/h

Humidity icon

45%

13:00

29

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31°

IQAir AirVisual Air Quality Map Wind rotating 353 degree

8

km/h

Humidity icon

42%

14:00

25

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31°

IQAir AirVisual Air Quality Map Wind rotating 339 degree

8

km/h

Humidity icon

42%

15:00

21

Weather icon

31°

IQAir AirVisual Air Quality Map Wind rotating 345 degree

8

km/h

Humidity icon

44%

16:00

17

Weather icon

30°

IQAir AirVisual Air Quality Map Wind rotating 353 degree

8

km/h

Humidity icon

51%

17:00

19

Weather icon

27°

IQAir AirVisual Air Quality Map Wind rotating 343 degree

5

km/h

Humidity icon

67%

18:00

21

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23°

IQAir AirVisual Air Quality Map Wind rotating 258 degree

4

km/h

Humidity icon

80%

Daily forecast

|

San Francisco air quality index (AQI⁺) forecast

Today

21

Weather icon

25°

19°

IQAir AirVisual Air Quality Map Wind rotating 0 degree

9

km/h

Humidity icon

89%

Fri

38

Weather icon

25°

19°

IQAir AirVisual Air Quality Map Wind rotating 0 degree

9

km/h

Humidity icon

88%

Sat

37

Weather icon

31°

21°

IQAir AirVisual Air Quality Map Wind rotating 0 degree

8

km/h

Humidity icon

64%

Air pollutants

What is the current air quality in San Francisco?

IQAir Check icon

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

Health recommendations

common.healthRecommendationComp.icons.exerciseAlt

Enjoy outdoor activities

common.healthRecommendationComp.icons.windowAlt

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

Health recommendations

common.healthRecommendationComp.icons.exerciseAlt

Enjoy outdoor activities

common.healthRecommendationComp.icons.windowAlt

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

Most polluted locations near San Francisco

Worldwide AQI⁺ rankingArrow icon

City ranking

Real-time Peru AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of Peru

Pucallpa, Ucayali

69

2
The national flag of Peru

Lima, Lima

53

3
The national flag of Peru

La Oroya, Junin

8

History

Historic air quality graph for San Francisco

19 AQI⁺ US
Good
19:00–20:00 Apr 23 Local time
AQI⁺ US

History

Historic air quality graph for San Francisco

19 AQI⁺ US
Good
19:00–20:00 Apr 23 Local time
AQI⁺ US

Most polluted locations near San Francisco

Worldwide AQI⁺ rankingArrow icon

City ranking

Real-time Peru AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of Peru

Pucallpa, Ucayali

69

2
The national flag of Peru

Lima, Lima

53

3
The national flag of Peru

La Oroya, Junin

8

Be the first to measure and contribute air quality data to your community

Where is the cleanest air quality in San Francisco?

No locations are available.