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Air quality in San Luis Obispo

Air quality index (AQI⁺) and PM2.5 air pollution in San Luis Obispo • 26K Followers • 16:00, Aug 11

Gifford Fire, California, USA nearby

Gifford Fire, California, USA nearby

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30

US AQI⁺

Good

face expression based on aqi value

Main pollutant:

PM2.5

5.4 µg/m³

weather condition icon

72°

wind direction icon

9.4 km/h

weather humid icon

57 %

Hourly forecast

San Luis Obispo air quality index (AQI⁺) forecast

Now

30

Weather icon

72°

IQAir AirVisual Air Quality Map Wind rotating 280 degree

9.4

km/h

Humidity icon

57%

17:00

33

Weather icon

70°

IQAir AirVisual Air Quality Map Wind rotating 284 degree

6.7

km/h

Humidity icon

56%

18:00

35

Weather icon

70°

IQAir AirVisual Air Quality Map Wind rotating 284 degree

6.7

km/h

Humidity icon

57%

19:00

38

Weather icon

66°

IQAir AirVisual Air Quality Map Wind rotating 284 degree

4.5

km/h

Humidity icon

62%

20:00

43

Weather icon

63°

IQAir AirVisual Air Quality Map Wind rotating 285 degree

2.2

km/h

Humidity icon

73%

21:00

46

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 252 degree

0

km/h

Humidity icon

82%

22:00

49

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 141 degree

0

km/h

Humidity icon

80%

23:00

66

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 158 degree

0

km/h

Humidity icon

79%

Tue

00:00

71

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 127 degree

0

km/h

Humidity icon

78%

01:00

77

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 84 degree

0

km/h

Humidity icon

74%

02:00

113

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 353 degree

0

km/h

Humidity icon

70%

03:00

121

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 308 degree

0

km/h

Humidity icon

68%

04:00

129

Weather icon

57°

IQAir AirVisual Air Quality Map Wind rotating 326 degree

2.2

km/h

Humidity icon

68%

05:00

130

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 347 degree

2.2

km/h

Humidity icon

63%

06:00

130

Weather icon

63°

IQAir AirVisual Air Quality Map Wind rotating 334 degree

0

km/h

Humidity icon

60%

07:00

130

Weather icon

64°

IQAir AirVisual Air Quality Map Wind rotating 328 degree

2.2

km/h

Humidity icon

56%

08:00

120

Weather icon

70°

IQAir AirVisual Air Quality Map Wind rotating 296 degree

2.2

km/h

Humidity icon

47%

09:00

120

Weather icon

73°

IQAir AirVisual Air Quality Map Wind rotating 277 degree

2.2

km/h

Humidity icon

41%

10:00

120

Weather icon

77°

IQAir AirVisual Air Quality Map Wind rotating 268 degree

4.5

km/h

Humidity icon

39%

11:00

85

Weather icon

79°

IQAir AirVisual Air Quality Map Wind rotating 265 degree

4.5

km/h

Humidity icon

40%

12:00

85

Weather icon

81°

IQAir AirVisual Air Quality Map Wind rotating 261 degree

6.7

km/h

Humidity icon

39%

13:00

85

Weather icon

79°

IQAir AirVisual Air Quality Map Wind rotating 262 degree

6.7

km/h

Humidity icon

39%

14:00

74

Weather icon

81°

IQAir AirVisual Air Quality Map Wind rotating 263 degree

6.7

km/h

Humidity icon

38%

15:00

74

Weather icon

79°

IQAir AirVisual Air Quality Map Wind rotating 264 degree

6.7

km/h

Humidity icon

38%

16:00

74

Weather icon

77°

IQAir AirVisual Air Quality Map Wind rotating 274 degree

6.7

km/h

Humidity icon

40%

17:00

66

Weather icon

75°

IQAir AirVisual Air Quality Map Wind rotating 277 degree

6.7

km/h

Humidity icon

44%

18:00

66

Weather icon

72°

IQAir AirVisual Air Quality Map Wind rotating 280 degree

6.7

km/h

Humidity icon

52%

19:00

66

Weather icon

66°

IQAir AirVisual Air Quality Map Wind rotating 281 degree

4.5

km/h

Humidity icon

64%

20:00

67

Weather icon

61°

IQAir AirVisual Air Quality Map Wind rotating 280 degree

2.2

km/h

Humidity icon

83%

21:00

67

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 301 degree

0

km/h

Humidity icon

87%

22:00

67

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 201 degree

0

km/h

Humidity icon

86%

23:00

83

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 160 degree

0

km/h

Humidity icon

87%

Wed

00:00

83

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 106 degree

0

km/h

Humidity icon

86%

01:00

83

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 122 degree

0

km/h

Humidity icon

83%

02:00

117

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 339 degree

0

km/h

Humidity icon

81%

03:00

117

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 350 degree

0

km/h

Humidity icon

80%

04:00

117

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 335 degree

0

km/h

Humidity icon

77%

05:00

148

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 333 degree

2.2

km/h

Humidity icon

74%

06:00

148

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 326 degree

2.2

km/h

Humidity icon

71%

07:00

148

Weather icon

61°

IQAir AirVisual Air Quality Map Wind rotating 320 degree

2.2

km/h

Humidity icon

68%

08:00

153

Weather icon

66°

IQAir AirVisual Air Quality Map Wind rotating 298 degree

2.2

km/h

Humidity icon

58%

09:00

153

Weather icon

72°

IQAir AirVisual Air Quality Map Wind rotating 284 degree

4.5

km/h

Humidity icon

48%

10:00

153

Weather icon

75°

IQAir AirVisual Air Quality Map Wind rotating 277 degree

4.5

km/h

Humidity icon

44%

11:00

93

Weather icon

77°

IQAir AirVisual Air Quality Map Wind rotating 274 degree

6.7

km/h

Humidity icon

42%

12:00

93

Weather icon

77°

IQAir AirVisual Air Quality Map Wind rotating 274 degree

6.7

km/h

Humidity icon

42%

13:00

93

Weather icon

79°

IQAir AirVisual Air Quality Map Wind rotating 271 degree

6.7

km/h

Humidity icon

42%

14:00

80

Weather icon

77°

IQAir AirVisual Air Quality Map Wind rotating 270 degree

8.9

km/h

Humidity icon

43%

15:00

80

Weather icon

75°

IQAir AirVisual Air Quality Map Wind rotating 273 degree

8.9

km/h

Humidity icon

44%

16:00

80

Weather icon

75°

IQAir AirVisual Air Quality Map Wind rotating 278 degree

6.7

km/h

Humidity icon

46%

17:00

66

Weather icon

73°

IQAir AirVisual Air Quality Map Wind rotating 280 degree

6.7

km/h

Humidity icon

50%

18:00

66

Weather icon

70°

IQAir AirVisual Air Quality Map Wind rotating 279 degree

6.7

km/h

Humidity icon

58%

19:00

66

Weather icon

64°

IQAir AirVisual Air Quality Map Wind rotating 284 degree

4.5

km/h

Humidity icon

70%

20:00

61

Weather icon

59°

IQAir AirVisual Air Quality Map Wind rotating 285 degree

2.2

km/h

Humidity icon

87%

21:00

61

Weather icon

57°

IQAir AirVisual Air Quality Map Wind rotating 288 degree

0

km/h

Humidity icon

92%

22:00

61

Weather icon

57°

IQAir AirVisual Air Quality Map Wind rotating 278 degree

0

km/h

Humidity icon

91%

23:00

65

Weather icon

57°

IQAir AirVisual Air Quality Map Wind rotating 101 degree

0

km/h

Humidity icon

91%

Thu

00:00

65

Weather icon

57°

IQAir AirVisual Air Quality Map Wind rotating 108 degree

0

km/h

Humidity icon

89%

01:00

65

Weather icon

57°

IQAir AirVisual Air Quality Map Wind rotating 103 degree

0

km/h

Humidity icon

87%

02:00

88

Weather icon

57°

IQAir AirVisual Air Quality Map Wind rotating 103 degree

0

km/h

Humidity icon

84%

03:00

88

Weather icon

57°

IQAir AirVisual Air Quality Map Wind rotating 301 degree

0

km/h

Humidity icon

84%

04:00

88

Weather icon

57°

IQAir AirVisual Air Quality Map Wind rotating 249 degree

0

km/h

Humidity icon

84%

05:00

111

Weather icon

57°

IQAir AirVisual Air Quality Map Wind rotating 300 degree

0

km/h

Humidity icon

84%

06:00

111

Weather icon

57°

IQAir AirVisual Air Quality Map Wind rotating 327 degree

0

km/h

Humidity icon

85%

07:00

111

Weather icon

57°

IQAir AirVisual Air Quality Map Wind rotating 316 degree

2.2

km/h

Humidity icon

82%

08:00

103

Weather icon

63°

IQAir AirVisual Air Quality Map Wind rotating 291 degree

2.2

km/h

Humidity icon

70%

09:00

103

Weather icon

66°

IQAir AirVisual Air Quality Map Wind rotating 273 degree

4.5

km/h

Humidity icon

61%

10:00

103

Weather icon

70°

IQAir AirVisual Air Quality Map Wind rotating 270 degree

4.5

km/h

Humidity icon

56%

11:00

79

Weather icon

72°

IQAir AirVisual Air Quality Map Wind rotating 266 degree

6.7

km/h

Humidity icon

53%

12:00

79

Weather icon

73°

IQAir AirVisual Air Quality Map Wind rotating 267 degree

6.7

km/h

Humidity icon

51%

13:00

79

Weather icon

75°

IQAir AirVisual Air Quality Map Wind rotating 269 degree

6.7

km/h

Humidity icon

50%

14:00

75

Weather icon

75°

IQAir AirVisual Air Quality Map Wind rotating 272 degree

8.9

km/h

Humidity icon

51%

15:00

75

Weather icon

73°

IQAir AirVisual Air Quality Map Wind rotating 276 degree

8.9

km/h

Humidity icon

52%

16:00

75

Weather icon

72°

IQAir AirVisual Air Quality Map Wind rotating 278 degree

6.7

km/h

Humidity icon

54%

Daily forecast

|

San Luis Obispo air quality index (AQI⁺) forecast

Today

63

Weather icon

77°

59°

IQAir AirVisual Air Quality Map Wind rotating 278 degree

8.9

km/h

Humidity icon

58%

Mon

95

Weather icon

81°

57°

IQAir AirVisual Air Quality Map Wind rotating 264 degree

6.7

km/h

Humidity icon

39%

Tue

101

Weather icon

79°

57°

IQAir AirVisual Air Quality Map Wind rotating 270 degree

8.9

km/h

Humidity icon

42%

Air pollutants

What is the current air quality in San Luis Obispo?

IQAir exclamation icon

PM2.5 concentration is currently 1.1 times the World Health Organization annual PM2.5 guideline value.

air quality map

Real-time San Luis Obispo 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

Pollen

What is the pollen count in San Luis Obispo today?

Index

Pollen global icon

Low

Pollen tree icon

Tree

None

0%
Pollen grass icon

Grass

Low

25%
Pollen weed icon

Weed

None

0%

Source:

tomorrow.io
Pollen forecast in San Luis Obispo

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
air quality map

Real-time San Luis Obispo air pollution map

Pollen

What is the pollen count in San Luis Obispo today?

Index

Pollen global icon

Low

Pollen tree icon

Tree

None

0%
Pollen grass icon

Grass

Low

25%
Pollen weed icon

Weed

None

0%

Source:

tomorrow.io
Pollen forecast in San Luis Obispo

Most polluted locations near San Luis Obispo

Worldwide AQI⁺ rankingArrow icon

Station ranking

Real-time USA AQI⁺ station ranking

#StationsAQI⁺ US
1
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SLO-Roberto

41

2
undefined's country flag

1429-1437 Parsons Wy

37

3
undefined's country flag

CARB - Cal Poly

36

4
undefined's country flag

Montrose Drive

34

5
undefined's country flag

Donegal Drive

33

6
undefined's country flag

Chaparral Circle

31

7
undefined's country flag

Cornus Court

31

8
undefined's country flag

Black Walnut Road

30

9
undefined's country flag

Jaycee Drive

30

10
undefined's country flag

Righetti Road

29

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
undefined's country flag

Onamia, Minnesota

171

2
undefined's country flag

Detroit Lakes, Minnesota

165

3
undefined's country flag

Durango, Colorado

149

4
undefined's country flag

Sandstone, Minnesota

135

5
undefined's country flag

Sioux City, Iowa

135

6
undefined's country flag

Duluth, Minnesota

121

7
undefined's country flag

Superior, Wisconsin

120

8
undefined's country flag

Falcon Heights, Minnesota

106

9
undefined's country flag

Minneapolis, Minnesota

105

10
undefined's country flag

Saint Paul, Minnesota

99

History

Historic air quality graph for San Luis Obispo

30 AQI⁺ US
Good
16:00 Aug 11 Local time
AQI⁺ US
external link icon

August 11, 2025: Riyadh among top 10 most polluted cities in the world

external link icon

Heatwave Map Spotlight: California, USA

external link icon

Wildfire Map Spotlight: Lee Fire, Colorado

History

Historic air quality graph for San Luis Obispo

30 AQI⁺ US
Good
16:00 Aug 11 Local time
AQI⁺ US
external link icon

August 11, 2025: Riyadh among top 10 most polluted cities in the world

external link icon

Heatwave Map Spotlight: California, USA

external link icon

Wildfire Map Spotlight: Lee Fire, Colorado

Most polluted locations near San Luis Obispo

Worldwide AQI⁺ rankingArrow icon

Station ranking

Real-time USA AQI⁺ station ranking

#StationsAQI⁺ US
1
undefined's country flag

SLO-Roberto

41

2
undefined's country flag

1429-1437 Parsons Wy

37

3
undefined's country flag

CARB - Cal Poly

36

4
undefined's country flag

Montrose Drive

34

5
undefined's country flag

Donegal Drive

33

6
undefined's country flag

Chaparral Circle

31

7
undefined's country flag

Cornus Court

31

8
undefined's country flag

Black Walnut Road

30

9
undefined's country flag

Jaycee Drive

30

10
undefined's country flag

Righetti Road

29

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
undefined's country flag

Onamia, Minnesota

171

2
undefined's country flag

Detroit Lakes, Minnesota

165

3
undefined's country flag

Durango, Colorado

149

4
undefined's country flag

Sandstone, Minnesota

135

5
undefined's country flag

Sioux City, Iowa

135

6
undefined's country flag

Duluth, Minnesota

121

7
undefined's country flag

Superior, Wisconsin

120

8
undefined's country flag

Falcon Heights, Minnesota

106

9
undefined's country flag

Minneapolis, Minnesota

105

10
undefined's country flag

Saint Paul, Minnesota

99

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