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Air quality in San Antonio

Air quality index (AQI⁺) and PM2.5 air pollution in San Antonio • 56.3K Followers • 17:00, Sep 03 Local time

US AQI⁺

Good

Main pollutant:

O₃

120 µg/m³

95°

12.2 km/h

30 %

Hourly forecast

San Antonio air quality index (AQI⁺) forecast

Now

95°

12.2

km/h

30%

18:00

95°

11.2

km/h

29%

19:00

95°

8.9

km/h

29%

20:00

90°

6.7

km/h

32%

21:00

84°

6.7

km/h

33%

22:00

79°

6.7

km/h

31%

23:00

75°

6.7

km/h

33%

Thu

00:00

73°

6.7

km/h

35%

01:00

73°

4.5

km/h

44%

02:00

75°

4.5

km/h

60%

03:00

73°

4.5

km/h

65%

04:00

73°

2.2

km/h

67%

05:00

73°

2.2

km/h

69%

06:00

72°

2.2

km/h

70%

07:00

70°

2.2

km/h

70%

08:00

77°

2.2

km/h

67%

09:00

81°

4.5

km/h

58%

10:00

84°

4.5

km/h

49%

11:00

88°

4.5

km/h

43%

12:00

91°

4.5

km/h

37%

13:00

95°

km/h

29%

14:00

97°

2.2

km/h

25%

15:00

97°

4.5

km/h

23%

16:00

99°

4.5

km/h

22%

17:00

99°

4.5

km/h

21%

18:00

99°

2.2

km/h

21%

19:00

97°

2.2

km/h

23%

20:00

91°

km/h

26%

21:00

90°

2.2

km/h

29%

22:00

88°

8.9

km/h

33%

23:00

84°

8.9

km/h

48%

Fri

00:00

82°

8.9

km/h

55%

01:00

81°

6.7

km/h

58%

02:00

79°

6.7

km/h

62%

03:00

79°

4.5

km/h

66%

04:00

77°

4.5

km/h

71%

05:00

77°

4.5

km/h

74%

06:00

77°

4.5

km/h

76%

07:00

75°

4.5

km/h

78%

08:00

77°

4.5

km/h

76%

09:00

79°

6.7

km/h

68%

10:00

82°

8.9

km/h

56%

11:00

88°

6.7

km/h

45%

12:00

91°

6.7

km/h

36%

13:00

93°

6.7

km/h

31%

14:00

95°

6.7

km/h

27%

15:00

97°

6.7

km/h

25%

16:00

95°

6.7

km/h

25%

17:00

97°

4.5

km/h

24%

18:00

97°

6.7

km/h

24%

19:00

95°

4.5

km/h

26%

20:00

91°

6.7

km/h

30%

21:00

88°

13.4

km/h

37%

22:00

84°

11.2

km/h

44%

23:00

82°

11.2

km/h

53%

Sat

00:00

81°

11.2

km/h

61%

01:00

79°

8.9

km/h

67%

02:00

79°

6.7

km/h

69%

03:00

77°

4.5

km/h

72%

04:00

77°

4.5

km/h

74%

05:00

77°

4.5

km/h

76%

06:00

77°

4.5

km/h

77%

07:00

77°

2.2

km/h

78%

08:00

77°

2.2

km/h

78%

09:00

79°

2.2

km/h

75%

10:00

81°

2.2

km/h

72%

11:00

84°

4.5

km/h

61%

12:00

86°

4.5

km/h

51%

13:00

90°

4.5

km/h

42%

14:00

93°

4.5

km/h

35%

15:00

95°

4.5

km/h

32%

16:00

95°

2.2

km/h

30%

17:00

93°

4.5

km/h

32%

Daily forecast

San Antonio air quality index (AQI⁺) forecast

Today

100%

95°

73°

11.2

km/h

43%

Thu

99°

70°

8.9

km/h

29%

Fri

97°

75°

13.4

km/h

31%

Air pollutants

What is the current air quality in San Antonio?

PM2.5 concentration is currently 1.6 times the World Health Organization annual PM2.5 guideline value.

Real-time San Antonio air pollution map

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Protect yourself from air pollution in San Antonio

Shop IQAir products

Air Purifiers

Face Masks

Air Quality Monitors

Pollen

What is the pollen count in San Antonio today?

Index

None

Tree None	0%
Grass None	0%
Weed None	0%

Source:

tomorrow.io

Pollen forecast in San Antonio

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Real-time San Antonio air pollution map

Pollen

What is the pollen count in San Antonio today?

Index

None

Tree None	0%
Grass None	0%
Weed None	0%

Source:

tomorrow.io

Pollen forecast in San Antonio

Protect yourself from air pollution in San Antonio

Shop IQAir products

Air Purifiers

Face Masks

Air Quality Monitors

Most polluted locations near San Antonio

Worldwide AQI⁺ ranking

Station ranking

Real-time USA AQI⁺ station ranking

#	Stations	AQI⁺ US
1	LIME Factory	67
2	San Antonio Old Hwy90 C677	56
3	1317 Guadalupe St	52
4	6698-6600 Curtis St	51
5	417-435 N Park Blvd	50
6	Heritage Middle School	50
7	2720 Vera Cruz	49
8	198-114 Grosvenor Blvd	48
9	Calaveras Lake C59	48
10	Harlandale	48

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Orleans, California	296
2	Colville, Washington	221
3	Sonora, California	190
4	Shaver Lake, California	178
5	Angels, California	173
6	Inchelium, Washington	167
7	Copperopolis, California	163
8	Kamiah, Idaho	161
9	Coarsegold, California	155
10	Kettle Falls, Washington	155

History

Historic air quality graph for San Antonio

43 AQI⁺ US

Good

16:00 Sep 03 Local time

AQI⁺ US

IQAir’s 25-Year Maintenance and Repairability Guarantee

September 3, 2025: Addis Ababa among top 10 most polluted cities in the world

September 3, 2025: Karachi among the most polluted cities in the world

History

Historic air quality graph for San Antonio

43 AQI⁺ US

Good

16:00 Sep 03 Local time

AQI⁺ US

IQAir’s 25-Year Maintenance and Repairability Guarantee

September 3, 2025: Addis Ababa among top 10 most polluted cities in the world

September 3, 2025: Karachi among the most polluted cities in the world

Most polluted locations near San Antonio

Worldwide AQI⁺ ranking

Station ranking

Real-time USA AQI⁺ station ranking

#	Stations	AQI⁺ US
1	LIME Factory	67
2	San Antonio Old Hwy90 C677	56
3	1317 Guadalupe St	52
4	6698-6600 Curtis St	51
5	417-435 N Park Blvd	50
6	Heritage Middle School	50
7	2720 Vera Cruz	49
8	198-114 Grosvenor Blvd	48
9	Calaveras Lake C59	48
10	Harlandale	48

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Orleans, California	296
2	Colville, Washington	221
3	Sonora, California	190
4	Shaver Lake, California	178
5	Angels, California	173
6	Inchelium, Washington	167
7	Copperopolis, California	163
8	Kamiah, Idaho	161
9	Coarsegold, California	155
10	Kettle Falls, Washington	155