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Air quality in San Mateo

Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo • 38 Followers • 04:00, Apr 24 Local time

39*

US AQI⁺

Good

face expression based on aqi value

Main pollutant:

PM2.5

7.2 µg/m³

weather condition icon

11°

wind direction icon

3 km/h

weather humid icon

97 %

Hourly forecast

San Mateo air quality index (AQI⁺) forecast

Now

39

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 73 degree

3

km/h

Humidity icon

97%

07:00

38

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 79 degree

6

km/h

Humidity icon

97%

08:00

37

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 51 degree

5

km/h

Humidity icon

95%

09:00

37

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 43 degree

5

km/h

Humidity icon

86%

10:00

37

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 57 degree

2

km/h

Humidity icon

73%

11:00

36

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 286 degree

1

km/h

Humidity icon

70%

12:00

36

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 251 degree

6

km/h

Humidity icon

81%

13:00

37

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 240 degree

9

km/h

Humidity icon

90%

14:00

37

Weather icon

80%

13°

IQAir AirVisual Air Quality Map Wind rotating 235 degree

12

km/h

Humidity icon

95%

15:00

38

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 239 degree

8

km/h

Humidity icon

97%

16:00

39

Weather icon

90%

12°

IQAir AirVisual Air Quality Map Wind rotating 241 degree

3

km/h

Humidity icon

98%

17:00

38

Weather icon

90%

11°

IQAir AirVisual Air Quality Map Wind rotating 192 degree

6

km/h

Humidity icon

98%

18:00

38

Weather icon

90%

10°

IQAir AirVisual Air Quality Map Wind rotating 90 degree

1

km/h

Humidity icon

98%

19:00

38

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 35 degree

6

km/h

Humidity icon

96%

20:00

39

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 50 degree

5

km/h

Humidity icon

97%

21:00

41

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 49 degree

8

km/h

Humidity icon

96%

22:00

43

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 46 degree

10

km/h

Humidity icon

96%

23:00

43

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 53 degree

13

km/h

Humidity icon

93%

Sat

00:00

43

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 58 degree

12

km/h

Humidity icon

92%

01:00

43

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 55 degree

10

km/h

Humidity icon

94%

02:00

43

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 49 degree

11

km/h

Humidity icon

91%

03:00

43

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 48 degree

11

km/h

Humidity icon

89%

04:00

43

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 56 degree

12

km/h

Humidity icon

86%

05:00

44

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 59 degree

11

km/h

Humidity icon

89%

06:00

46

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 58 degree

12

km/h

Humidity icon

92%

07:00

48

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 57 degree

14

km/h

Humidity icon

89%

08:00

48

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 55 degree

12

km/h

Humidity icon

75%

09:00

48

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 54 degree

11

km/h

Humidity icon

68%

10:00

48

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 60 degree

9

km/h

Humidity icon

62%

11:00

46

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 76 degree

6

km/h

Humidity icon

57%

12:00

44

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 153 degree

2

km/h

Humidity icon

56%

13:00

42

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 232 degree

5

km/h

Humidity icon

68%

14:00

42

Weather icon

80%

16°

IQAir AirVisual Air Quality Map Wind rotating 240 degree

6

km/h

Humidity icon

71%

15:00

43

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 221 degree

8

km/h

Humidity icon

79%

16:00

44

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 225 degree

9

km/h

Humidity icon

87%

17:00

40

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 225 degree

8

km/h

Humidity icon

93%

18:00

37

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 203 degree

3

km/h

Humidity icon

90%

19:00

34

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 240 degree

3

km/h

Humidity icon

84%

20:00

35

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 238 degree

3

km/h

Humidity icon

83%

21:00

36

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 217 degree

2

km/h

Humidity icon

83%

22:00

38

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 222 degree

2

km/h

Humidity icon

84%

23:00

38

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 245 degree

2

km/h

Humidity icon

81%

Sun

00:00

38

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 264 degree

3

km/h

Humidity icon

80%

01:00

39

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 262 degree

4

km/h

Humidity icon

82%

02:00

42

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 263 degree

4

km/h

Humidity icon

85%

03:00

45

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 258 degree

3

km/h

Humidity icon

87%

04:00

48

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 273 degree

3

km/h

Humidity icon

87%

05:00

48

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 295 degree

1

km/h

Humidity icon

84%

06:00

48

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 26 degree

3

km/h

Humidity icon

81%

07:00

48

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 48 degree

4

km/h

Humidity icon

75%

08:00

46

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 60 degree

5

km/h

Humidity icon

70%

09:00

44

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 63 degree

3

km/h

Humidity icon

65%

10:00

42

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 304 degree

1

km/h

Humidity icon

59%

11:00

44

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 244 degree

5

km/h

Humidity icon

56%

12:00

46

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 233 degree

9

km/h

Humidity icon

65%

13:00

48

Weather icon

90%

15°

IQAir AirVisual Air Quality Map Wind rotating 245 degree

8

km/h

Humidity icon

72%

14:00

46

Weather icon

90%

15°

IQAir AirVisual Air Quality Map Wind rotating 255 degree

8

km/h

Humidity icon

75%

15:00

45

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 241 degree

11

km/h

Humidity icon

81%

16:00

44

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 228 degree

12

km/h

Humidity icon

87%

17:00

41

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 236 degree

11

km/h

Humidity icon

88%

18:00

38

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 242 degree

7

km/h

Humidity icon

97%

19:00

35

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 232 degree

6

km/h

Humidity icon

94%

20:00

38

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 228 degree

6

km/h

Humidity icon

93%

21:00

42

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 224 degree

5

km/h

Humidity icon

94%

22:00

46

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 216 degree

3

km/h

Humidity icon

92%

23:00

48

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 234 degree

4

km/h

Humidity icon

91%

Mon

00:00

50

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 246 degree

4

km/h

Humidity icon

94%

01:00

52

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 240 degree

5

km/h

Humidity icon

95%

02:00

52

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 236 degree

5

km/h

Humidity icon

96%

03:00

52

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 234 degree

4

km/h

Humidity icon

98%

04:00

52

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 103 degree

1

km/h

Humidity icon

93%

05:00

51

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 63 degree

5

km/h

Humidity icon

87%

Daily forecast

|

San Mateo air quality index (AQI⁺) forecast

Today

38

Weather icon

14°

10°

IQAir AirVisual Air Quality Map Wind rotating 45 degree

12

km/h

Humidity icon

92%

Sat

44

Weather icon

17°

10°

IQAir AirVisual Air Quality Map Wind rotating 225 degree

14

km/h

Humidity icon

78%

Sun

43

Weather icon

17°

12°

IQAir AirVisual Air Quality Map Wind rotating 225 degree

12

km/h

Humidity icon

79%

Air pollutants

What is the current air quality in San Mateo?

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PM2.5 concentration is currently 1.4 times the World Health Organization annual PM2.5 guideline value.

air quality map

Real-time San Mateo air pollution map

Health recommendations

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Enjoy outdoor activities

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Open your windows to bring clean, fresh air indoors

Get a monitor

Protect yourself from air pollution in San Mateo

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Air Quality Monitors

Health recommendations

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Enjoy outdoor activities

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Open your windows to bring clean, fresh air indoors

Get a monitor
air quality map

Real-time San Mateo air pollution map

Protect yourself from air pollution in San Mateo

SHOP IQAIR PRODUCTS

Air Purifiers

Face Masks

Air Quality Monitors

Most polluted locations near San Mateo

Worldwide AQI⁺ rankingArrow icon

City ranking

Real-time Peru AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of Peru

Lima, Lima

46

2
The national flag of Peru

La Oroya, Junin

7

History

Historic air quality graph for San Mateo

39 AQI⁺ US
Good
04:00–05:00 Apr 24 Local time
AQI⁺ US

History

Historic air quality graph for San Mateo

39 AQI⁺ US
Good
04:00–05:00 Apr 24 Local time
AQI⁺ US

Most polluted locations near San Mateo

Worldwide AQI⁺ rankingArrow icon

City ranking

Real-time Peru AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of Peru

Lima, Lima

46

2
The national flag of Peru

La Oroya, Junin

7

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

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Where is the cleanest air quality in San Mateo?

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