Air quality in San Francisco

Air quality index (AQI⁺) and PM2.5 air pollution in San Francisco • 575 Followers • 19:00, Apr 26 Local time

23*

US AQI⁺

Good

face expression based on aqi value

Main pollutant:

PM2.5

4.2 µg/m³

weather condition icon

22°

wind direction icon

3 km/h

weather humid icon

83 %

Hourly forecast

San Francisco air quality index (AQI⁺) forecast

Now

23

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 206 degree

3

km/h

Humidity icon

83%

21:00

23

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 200 degree

3

km/h

Humidity icon

82%

22:00

24

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 186 degree

3

km/h

Humidity icon

81%

23:00

26

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 177 degree

3

km/h

Humidity icon

81%

Mon

00:00

30

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 161 degree

2

km/h

Humidity icon

84%

01:00

35

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 165 degree

3

km/h

Humidity icon

83%

02:00

38

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 152 degree

2

km/h

Humidity icon

88%

03:00

40

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 153 degree

2

km/h

Humidity icon

91%

04:00

43

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 184 degree

3

km/h

Humidity icon

93%

05:00

45

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 174 degree

2

km/h

Humidity icon

91%

06:00

47

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 183 degree

2

km/h

Humidity icon

95%

07:00

49

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 141 degree

1

km/h

Humidity icon

89%

08:00

47

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 58 degree

2

km/h

Humidity icon

81%

09:00

45

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 359 degree

3

km/h

Humidity icon

70%

10:00

43

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 349 degree

4

km/h

Humidity icon

74%

11:00

42

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 333 degree

5

km/h

Humidity icon

77%

12:00

41

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 329 degree

7

km/h

Humidity icon

70%

13:00

41

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 351 degree

8

km/h

Humidity icon

58%

14:00

34

Weather icon

29°

IQAir AirVisual Air Quality Map Wind rotating 9 degree

7

km/h

Humidity icon

55%

15:00

27

Weather icon

29°

IQAir AirVisual Air Quality Map Wind rotating 12 degree

7

km/h

Humidity icon

55%

16:00

20

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 358 degree

7

km/h

Humidity icon

57%

17:00

19

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 347 degree

6

km/h

Humidity icon

69%

18:00

18

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 317 degree

2

km/h

Humidity icon

90%

19:00

18

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 316 degree

1

km/h

Humidity icon

94%

20:00

18

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 218 degree

1

km/h

Humidity icon

93%

21:00

18

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 215 degree

1

km/h

Humidity icon

92%

22:00

19

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 206 degree

1

km/h

Humidity icon

91%

23:00

23

Weather icon

90%

20°

IQAir AirVisual Air Quality Map Wind rotating 190 degree

2

km/h

Humidity icon

95%

Tue

00:00

27

Weather icon

90%

20°

IQAir AirVisual Air Quality Map Wind rotating 181 degree

3

km/h

Humidity icon

95%

01:00

31

Weather icon

90%

20°

IQAir AirVisual Air Quality Map Wind rotating 150 degree

2

km/h

Humidity icon

97%

02:00

33

Weather icon

90%

20°

IQAir AirVisual Air Quality Map Wind rotating 193 degree

2

km/h

Humidity icon

98%

03:00

35

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 233 degree

2

km/h

Humidity icon

97%

04:00

38

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 211 degree

2

km/h

Humidity icon

97%

05:00

37

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 214 degree

2

km/h

Humidity icon

97%

06:00

36

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 207 degree

2

km/h

Humidity icon

96%

07:00

36

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 177 degree

2

km/h

Humidity icon

94%

08:00

39

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 65 degree

2

km/h

Humidity icon

87%

09:00

42

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 22 degree

2

km/h

Humidity icon

70%

10:00

46

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 358 degree

4

km/h

Humidity icon

60%

11:00

44

Weather icon

29°

IQAir AirVisual Air Quality Map Wind rotating 348 degree

5

km/h

Humidity icon

55%

12:00

42

Weather icon

31°

IQAir AirVisual Air Quality Map Wind rotating 348 degree

5

km/h

Humidity icon

51%

13:00

40

Weather icon

32°

IQAir AirVisual Air Quality Map Wind rotating 351 degree

6

km/h

Humidity icon

45%

14:00

35

Weather icon

32°

IQAir AirVisual Air Quality Map Wind rotating 326 degree

7

km/h

Humidity icon

44%

15:00

31

Weather icon

31°

IQAir AirVisual Air Quality Map Wind rotating 315 degree

7

km/h

Humidity icon

44%

16:00

27

Weather icon

30°

IQAir AirVisual Air Quality Map Wind rotating 316 degree

6

km/h

Humidity icon

47%

17:00

23

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 326 degree

4

km/h

Humidity icon

61%

18:00

20

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 263 degree

3

km/h

Humidity icon

76%

19:00

17

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 222 degree

4

km/h

Humidity icon

81%

20:00

16

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 204 degree

4

km/h

Humidity icon

81%

21:00

16

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 188 degree

4

km/h

Humidity icon

81%

22:00

16

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 187 degree

4

km/h

Humidity icon

81%

23:00

25

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 199 degree

3

km/h

Humidity icon

80%

Wed

00:00

34

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 199 degree

2

km/h

Humidity icon

79%

01:00

43

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 210 degree

2

km/h

Humidity icon

78%

02:00

43

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 196 degree

2

km/h

Humidity icon

77%

03:00

43

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 214 degree

2

km/h

Humidity icon

78%

04:00

44

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 230 degree

2

km/h

Humidity icon

79%

05:00

44

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 235 degree

2

km/h

Humidity icon

80%

06:00

44

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 223 degree

2

km/h

Humidity icon

81%

07:00

44

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 220 degree

1

km/h

Humidity icon

75%

08:00

46

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 46 degree

2

km/h

Humidity icon

67%

09:00

49

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 8 degree

4

km/h

Humidity icon

60%

10:00

52

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 351 degree

6

km/h

Humidity icon

55%

11:00

43

Weather icon

30°

IQAir AirVisual Air Quality Map Wind rotating 348 degree

8

km/h

Humidity icon

50%

12:00

34

Weather icon

31°

IQAir AirVisual Air Quality Map Wind rotating 347 degree

10

km/h

Humidity icon

46%

13:00

26

Weather icon

31°

IQAir AirVisual Air Quality Map Wind rotating 344 degree

10

km/h

Humidity icon

45%

14:00

23

Weather icon

31°

IQAir AirVisual Air Quality Map Wind rotating 338 degree

10

km/h

Humidity icon

47%

15:00

20

Weather icon

30°

IQAir AirVisual Air Quality Map Wind rotating 343 degree

8

km/h

Humidity icon

52%

16:00

18

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 350 degree

6

km/h

Humidity icon

59%

17:00

17

Weather icon

90%

24°

IQAir AirVisual Air Quality Map Wind rotating 287 degree

4

km/h

Humidity icon

88%

18:00

17

Weather icon

90%

22°

IQAir AirVisual Air Quality Map Wind rotating 285 degree

4

km/h

Humidity icon

95%

19:00

17

Weather icon

90%

21°

IQAir AirVisual Air Quality Map Wind rotating 258 degree

3

km/h

Humidity icon

98%

Daily forecast

|

San Francisco air quality index (AQI⁺) forecast

Today

37

Weather icon

29°

20°

IQAir AirVisual Air Quality Map Wind rotating 0 degree

8

km/h

Humidity icon

77%

Mon

32

Weather icon

32°

19°

IQAir AirVisual Air Quality Map Wind rotating 0 degree

7

km/h

Humidity icon

68%

Tue

33

Weather icon

31°

20°

IQAir AirVisual Air Quality Map Wind rotating 0 degree

10

km/h

Humidity icon

71%

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

109

2
The national flag of Peru

Lima, Lima

63

3
The national flag of Peru

La Oroya, Junin

9

History

Historic air quality graph for San Francisco

23 AQI⁺ US
Good
19:00–20:00 Apr 26 Local time
AQI⁺ US

History

Historic air quality graph for San Francisco

23 AQI⁺ US
Good
19:00–20:00 Apr 26 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

109

2
The national flag of Peru

Lima, Lima

63

3
The national flag of Peru

La Oroya, Junin

9

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.