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Air quality in San Mateo

Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo • 53.9K Followers • 05:00, Nov 14 Local time

11

US AQI⁺

Good

face expression based on aqi value

Main pollutant:

PM2.5

1.9 µg/m³

weather condition icon

13°

wind direction icon

6 km/h

weather humid icon

81 %

Hourly forecast

San Mateo air quality index (AQI⁺) forecast

Now

11

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 183 degree

6

km/h

Humidity icon

81%

06:00

12

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 188 degree

5

km/h

Humidity icon

79%

07:00

16

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 171 degree

3

km/h

Humidity icon

77%

08:00

19

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 154 degree

3

km/h

Humidity icon

75%

09:00

21

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 141 degree

6

km/h

Humidity icon

71%

10:00

20

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 156 degree

2

km/h

Humidity icon

66%

11:00

22

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 114 degree

2

km/h

Humidity icon

63%

12:00

24

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 34 degree

1

km/h

Humidity icon

61%

13:00

22

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 339 degree

5

km/h

Humidity icon

61%

14:00

23

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 321 degree

8

km/h

Humidity icon

62%

15:00

24

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 295 degree

10

km/h

Humidity icon

64%

16:00

12

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 267 degree

8

km/h

Humidity icon

68%

17:00

12

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 246 degree

8

km/h

Humidity icon

72%

18:00

12

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 223 degree

6

km/h

Humidity icon

74%

19:00

14

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 196 degree

6

km/h

Humidity icon

73%

20:00

14

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 189 degree

8

km/h

Humidity icon

76%

21:00

14

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 203 degree

7

km/h

Humidity icon

77%

22:00

16

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 185 degree

7

km/h

Humidity icon

78%

23:00

16

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 171 degree

10

km/h

Humidity icon

79%

Sun

00:00

16

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 161 degree

9

km/h

Humidity icon

77%

01:00

18

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 166 degree

8

km/h

Humidity icon

76%

02:00

18

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 160 degree

9

km/h

Humidity icon

75%

03:00

18

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 163 degree

9

km/h

Humidity icon

74%

04:00

16

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 175 degree

6

km/h

Humidity icon

73%

05:00

16

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 157 degree

10

km/h

Humidity icon

74%

06:00

16

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 143 degree

14

km/h

Humidity icon

75%

07:00

14

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 170 degree

10

km/h

Humidity icon

80%

08:00

14

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 159 degree

11

km/h

Humidity icon

80%

09:00

14

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 159 degree

13

km/h

Humidity icon

73%

10:00

8

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 171 degree

13

km/h

Humidity icon

68%

11:00

8

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 180 degree

14

km/h

Humidity icon

64%

12:00

8

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 195 degree

17

km/h

Humidity icon

62%

13:00

7

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 206 degree

18

km/h

Humidity icon

68%

14:00

7

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 199 degree

20

km/h

Humidity icon

73%

15:00

7

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 200 degree

18

km/h

Humidity icon

75%

16:00

7

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 227 degree

12

km/h

Humidity icon

80%

17:00

7

Weather icon

80%

15°

IQAir AirVisual Air Quality Map Wind rotating 290 degree

10

km/h

Humidity icon

90%

18:00

7

Weather icon

90%

14°

IQAir AirVisual Air Quality Map Wind rotating 311 degree

23

km/h

Humidity icon

93%

19:00

21

Weather icon

80%

14°

IQAir AirVisual Air Quality Map Wind rotating 297 degree

23

km/h

Humidity icon

87%

20:00

21

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 293 degree

13

km/h

Humidity icon

88%

21:00

21

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 298 degree

11

km/h

Humidity icon

88%

22:00

14

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 294 degree

8

km/h

Humidity icon

88%

23:00

14

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 217 degree

2

km/h

Humidity icon

90%

Mon

00:00

14

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 129 degree

5

km/h

Humidity icon

88%

01:00

22

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 169 degree

7

km/h

Humidity icon

86%

02:00

22

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 175 degree

7

km/h

Humidity icon

84%

03:00

22

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 226 degree

5

km/h

Humidity icon

80%

04:00

23

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 251 degree

3

km/h

Humidity icon

74%

05:00

23

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 266 degree

9

km/h

Humidity icon

76%

06:00

23

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 284 degree

10

km/h

Humidity icon

76%

07:00

18

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 296 degree

13

km/h

Humidity icon

75%

08:00

18

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 310 degree

14

km/h

Humidity icon

73%

09:00

18

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 309 degree

13

km/h

Humidity icon

70%

10:00

18

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 314 degree

12

km/h

Humidity icon

67%

11:00

18

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 314 degree

15

km/h

Humidity icon

66%

12:00

18

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 305 degree

15

km/h

Humidity icon

66%

13:00

20

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 302 degree

17

km/h

Humidity icon

66%

14:00

20

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 298 degree

18

km/h

Humidity icon

66%

15:00

20

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 296 degree

20

km/h

Humidity icon

64%

16:00

22

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 297 degree

22

km/h

Humidity icon

65%

17:00

22

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 294 degree

21

km/h

Humidity icon

65%

18:00

22

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 295 degree

20

km/h

Humidity icon

66%

19:00

29

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 297 degree

19

km/h

Humidity icon

65%

20:00

29

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 296 degree

20

km/h

Humidity icon

65%

21:00

29

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 296 degree

21

km/h

Humidity icon

65%

22:00

34

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 303 degree

23

km/h

Humidity icon

64%

23:00

34

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 308 degree

19

km/h

Humidity icon

63%

Tue

00:00

34

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 306 degree

18

km/h

Humidity icon

63%

01:00

34

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 309 degree

17

km/h

Humidity icon

64%

02:00

34

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 309 degree

15

km/h

Humidity icon

64%

03:00

34

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 313 degree

13

km/h

Humidity icon

66%

04:00

29

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 315 degree

12

km/h

Humidity icon

67%

Daily forecast

|

San Mateo air quality index (AQI⁺) forecast

Air pollutants

What is the current air quality in San Mateo?

IQAir Check icon

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

Health recommendations

Protect yourself from air pollution in San Mateo

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Medical grade air purifiers

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Powerful, stylish air purifiers

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Clean Air Facilities

Pollen

What is the pollen count in San Mateo today?

Index

Pollen global icon

Low

Pollen tree icon

Tree

Low

25%
Pollen grass icon

Grass

None

0%
Pollen weed icon

Weed

Low

25%

Source:

wetter.com
Pollen forecast in San Mateo

Health recommendations

Pollen

What is the pollen count in San Mateo today?

Index

Pollen global icon

Low

Pollen tree icon

Tree

Low

25%
Pollen grass icon

Grass

None

0%
Pollen weed icon

Weed

Low

25%

Source:

wetter.com
Pollen forecast in San Mateo

Protect yourself from air pollution in San Mateo

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 Mateo

Worldwide AQI⁺ rankingArrow icon

Station ranking

Real-time AQI⁺ station ranking for stations in San Mateo

#StationsAQI⁺ US
1
The national flag of USA

113 West 40th Avenue

14

2
The national flag of USA

213-201 Irving St

14

3
The national flag of USA

Hayward Park on El Camino

14

4
The national flag of USA

238 41st Avenue

13

5
The national flag of USA

Beresford Park

12

6
The national flag of USA

Arroyo Ct

11

7
The national flag of USA

37th Avenue

10

8
The national flag of USA

Belford Way

3

9
The national flag of USA

13th Avenue

2

10
The national flag of USA

CuriOdyssey at Coyote Point

2

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Valley Center, California

172

2
The national flag of USA

Sandpoint, Idaho

86

3
The national flag of USA

Kansas City, Kansas

81

4
The national flag of USA

Mariposa County, California

81

5
The national flag of USA

Winthrop, Washington

81

6
The national flag of USA

Hawaii, Hawaii

77

7
The national flag of USA

Rutland, Vermont

75

8
The national flag of USA

Coeur d'Alene, Idaho

74

9
The national flag of USA

Kalispell, Montana

73

10
The national flag of USA

Kettle Falls, Washington

71

History

Historic air quality graph for San Mateo

11 AQI⁺ US
Good
04:00–05:00 Nov 14 Local time
AQI⁺ US

History

Historic air quality graph for San Mateo

11 AQI⁺ US
Good
04:00–05:00 Nov 14 Local time
AQI⁺ US

Clean Air Facilities

Most polluted locations near San Mateo

Worldwide AQI⁺ rankingArrow icon

Station ranking

Real-time AQI⁺ station ranking for stations in San Mateo

#StationsAQI⁺ US
1
The national flag of USA

113 West 40th Avenue

14

2
The national flag of USA

213-201 Irving St

14

3
The national flag of USA

Hayward Park on El Camino

14

4
The national flag of USA

238 41st Avenue

13

5
The national flag of USA

Beresford Park

12

6
The national flag of USA

Arroyo Ct

11

7
The national flag of USA

37th Avenue

10

8
The national flag of USA

Belford Way

3

9
The national flag of USA

13th Avenue

2

10
The national flag of USA

CuriOdyssey at Coyote Point

2

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Valley Center, California

172

2
The national flag of USA

Sandpoint, Idaho

86

3
The national flag of USA

Kansas City, Kansas

81

4
The national flag of USA

Mariposa County, California

81

5
The national flag of USA

Winthrop, Washington

81

6
The national flag of USA

Hawaii, Hawaii

77

7
The national flag of USA

Rutland, Vermont

75

8
The national flag of USA

Coeur d'Alene, Idaho

74

9
The national flag of USA

Kalispell, Montana

73

10
The national flag of USA

Kettle Falls, Washington

71

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