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Air quality in San Mateo

Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo • 42 Followers • 07:00, Aug 14 Local time

54*

US AQI⁺

Moderate

face expression based on aqi value

Main pollutant:

PM2.5

10.9 µg/m³

weather condition icon

14°

wind direction icon

14 km/h

weather humid icon

46 %

Hourly forecast

San Mateo air quality index (AQI⁺) forecast

Now

54

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 53 degree

14

km/h

Humidity icon

46%

10:00

54

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15°

IQAir AirVisual Air Quality Map Wind rotating 51 degree

13

km/h

Humidity icon

40%

11:00

55

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17°

IQAir AirVisual Air Quality Map Wind rotating 47 degree

10

km/h

Humidity icon

36%

12:00

55

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18°

IQAir AirVisual Air Quality Map Wind rotating 32 degree

7

km/h

Humidity icon

33%

13:00

57

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19°

IQAir AirVisual Air Quality Map Wind rotating 318 degree

3

km/h

Humidity icon

31%

14:00

57

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19°

IQAir AirVisual Air Quality Map Wind rotating 280 degree

5

km/h

Humidity icon

32%

15:00

57

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19°

IQAir AirVisual Air Quality Map Wind rotating 252 degree

7

km/h

Humidity icon

34%

16:00

58

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18°

IQAir AirVisual Air Quality Map Wind rotating 246 degree

12

km/h

Humidity icon

46%

17:00

58

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16°

IQAir AirVisual Air Quality Map Wind rotating 258 degree

13

km/h

Humidity icon

61%

18:00

59

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14°

IQAir AirVisual Air Quality Map Wind rotating 289 degree

8

km/h

Humidity icon

66%

19:00

60

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14°

IQAir AirVisual Air Quality Map Wind rotating 358 degree

6

km/h

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60%

20:00

60

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14°

IQAir AirVisual Air Quality Map Wind rotating 18 degree

4

km/h

Humidity icon

61%

21:00

60

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13°

IQAir AirVisual Air Quality Map Wind rotating 35 degree

3

km/h

Humidity icon

64%

22:00

60

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13°

IQAir AirVisual Air Quality Map Wind rotating 52 degree

7

km/h

Humidity icon

63%

23:00

59

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 54 degree

5

km/h

Humidity icon

65%

Sat

00:00

58

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 55 degree

7

km/h

Humidity icon

68%

01:00

58

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 54 degree

9

km/h

Humidity icon

73%

02:00

59

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 59 degree

9

km/h

Humidity icon

77%

03:00

60

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 57 degree

8

km/h

Humidity icon

78%

04:00

61

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 59 degree

10

km/h

Humidity icon

78%

05:00

62

Weather icon

9°

IQAir AirVisual Air Quality Map Wind rotating 66 degree

10

km/h

Humidity icon

78%

06:00

63

Weather icon

9°

IQAir AirVisual Air Quality Map Wind rotating 65 degree

10

km/h

Humidity icon

77%

07:00

65

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 62 degree

10

km/h

Humidity icon

70%

08:00

63

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 54 degree

8

km/h

Humidity icon

51%

09:00

62

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 46 degree

4

km/h

Humidity icon

36%

10:00

61

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 6 degree

3

km/h

Humidity icon

29%

11:00

59

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18°

IQAir AirVisual Air Quality Map Wind rotating 301 degree

3

km/h

Humidity icon

25%

12:00

57

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19°

IQAir AirVisual Air Quality Map Wind rotating 278 degree

6

km/h

Humidity icon

27%

13:00

56

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 274 degree

8

km/h

Humidity icon

31%

14:00

54

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19°

IQAir AirVisual Air Quality Map Wind rotating 263 degree

11

km/h

Humidity icon

35%

15:00

53

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 247 degree

18

km/h

Humidity icon

46%

16:00

52

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 239 degree

20

km/h

Humidity icon

59%

17:00

53

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 240 degree

16

km/h

Humidity icon

76%

18:00

55

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 279 degree

6

km/h

Humidity icon

89%

19:00

57

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12°

IQAir AirVisual Air Quality Map Wind rotating 344 degree

5

km/h

Humidity icon

93%

20:00

57

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13°

IQAir AirVisual Air Quality Map Wind rotating 338 degree

2

km/h

Humidity icon

82%

21:00

58

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 252 degree

5

km/h

Humidity icon

76%

22:00

59

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 252 degree

7

km/h

Humidity icon

77%

23:00

58

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 250 degree

8

km/h

Humidity icon

83%

Sun

00:00

57

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 264 degree

5

km/h

Humidity icon

84%

01:00

57

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12°

IQAir AirVisual Air Quality Map Wind rotating 267 degree

4

km/h

Humidity icon

81%

02:00

55

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 250 degree

6

km/h

Humidity icon

77%

03:00

54

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 245 degree

7

km/h

Humidity icon

74%

04:00

53

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 253 degree

6

km/h

Humidity icon

70%

05:00

55

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 256 degree

6

km/h

Humidity icon

69%

06:00

57

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 280 degree

4

km/h

Humidity icon

70%

07:00

60

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 276 degree

5

km/h

Humidity icon

69%

08:00

59

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 278 degree

4

km/h

Humidity icon

64%

09:00

59

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 266 degree

6

km/h

Humidity icon

59%

10:00

59

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 254 degree

9

km/h

Humidity icon

53%

11:00

58

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16°

IQAir AirVisual Air Quality Map Wind rotating 245 degree

14

km/h

Humidity icon

45%

12:00

57

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18°

IQAir AirVisual Air Quality Map Wind rotating 243 degree

19

km/h

Humidity icon

44%

13:00

56

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 245 degree

23

km/h

Humidity icon

49%

14:00

55

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 238 degree

21

km/h

Humidity icon

56%

15:00

55

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 241 degree

19

km/h

Humidity icon

58%

16:00

55

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 245 degree

18

km/h

Humidity icon

59%

17:00

55

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 245 degree

16

km/h

Humidity icon

69%

18:00

55

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 250 degree

14

km/h

Humidity icon

83%

19:00

55

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 231 degree

10

km/h

Humidity icon

89%

20:00

57

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 232 degree

6

km/h

Humidity icon

86%

21:00

59

Weather icon

80%

11°

IQAir AirVisual Air Quality Map Wind rotating 248 degree

7

km/h

Humidity icon

93%

22:00

61

Weather icon

90%

11°

IQAir AirVisual Air Quality Map Wind rotating 301 degree

4

km/h

Humidity icon

95%

23:00

59

Weather icon

80%

11°

IQAir AirVisual Air Quality Map Wind rotating 33 degree

8

km/h

Humidity icon

95%

Mon

00:00

58

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 31 degree

9

km/h

Humidity icon

90%

01:00

57

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 18 degree

7

km/h

Humidity icon

80%

02:00

56

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 336 degree

5

km/h

Humidity icon

74%

03:00

55

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 302 degree

5

km/h

Humidity icon

71%

04:00

54

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 299 degree

6

km/h

Humidity icon

64%

05:00

55

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 304 degree

6

km/h

Humidity icon

61%

06:00

56

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 273 degree

6

km/h

Humidity icon

67%

07:00

57

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 311 degree

6

km/h

Humidity icon

64%

08:00

58

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 338 degree

5

km/h

Humidity icon

60%

Daily forecast

|

San Mateo air quality index (AQI⁺) forecast

Air pollutants

What is the current air quality in San Mateo?

IQAir exclamation icon

PM2.5 concentration is currently 2.2 times the World Health Organization annual PM2.5 guideline value.

air quality map

Real-time San Mateo air pollution map

Health recommendations

Protect yourself from air pollution in San Mateo

SHOP IQAIR PRODUCTS

Air Purifiers

Face Masks

Air Quality Monitors

Health recommendations

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

Pucallpa, Ucayali

160

2
The national flag of Peru

Lima, Lima

53

3
The national flag of Peru

La Oroya, Junin

39

History

Historic air quality graph for San Mateo

54 AQI⁺ US
Moderate
07:00–08:00 Aug 14 Local time
AQI⁺ US

History

Historic air quality graph for San Mateo

54 AQI⁺ US
Moderate
07:00–08:00 Aug 14 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

Pucallpa, Ucayali

160

2
The national flag of Peru

Lima, Lima

53

3
The national flag of Peru

La Oroya, Junin

39

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Where is the cleanest air quality in San Mateo?

No locations are available.