Air quality in San Marcos

Air quality index (AQI) and PM2.5 air pollution in San Marcos

LAST UPDATE (local time)

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Weather

What is the current weather in San Marcos?

Weather icon
WeatherClear sky
Temperature77°C
Humidity91%
Wind4.6 mp/h
Pressure1017 mb

live aqi city ranking

Real-time USA city ranking

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#cityUS AQI
1 Greenville, California

391

2 Westwood, California

296

3 Quincy, California

231

4 Inchelium, Washington

226

5 Pierre, South Dakota

216

6 Park Rapids, Minnesota

198

7 Aberdeen, South Dakota

197

8 Summerset, South Dakota

196

9 Fargo, North Dakota

194

10 Washburn, Wisconsin

192

(local time)

SEE WORLD AQI RANKING

live San Marcos aqi ranking

Real-time San Marcos air quality ranking

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#stationUS AQI
1 Fish Hatchery Road

26

2 CAPCOG San Marcos Staples Road

2

(local time)

SEE WORLD AQI RANKING

US AQI

26

live AQI index
Good

Human face indicating AQI level

Overview

What is the current air quality in San Marcos?

Air pollution levelAir quality indexMain pollutant
Good 26 US AQItrendPM2.5
PollutantsConcentration
PM2.5
6.4 µg/m³trend
!

PM2.5

x0

PM2.5 concentration in San Marcos air is currently 0 times above WHO exposure recommendation

Health Recommendations

How to protect from air pollution in San Marcos?

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Forecast

San Marcos air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Tuesday, Jul 27

Good 40 US AQI

Human face indicating AQI level
Wednesday, Jul 28

Moderate 59 US AQI

Human face indicating AQI level
Thursday, Jul 29

Moderate 60 US AQI

Human face indicating AQI level
Friday, Jul 30

Good 21 US AQI

Human face indicating AQI level
Weather icon91.4°75.2°
Wind rotating 149 degree

8.9 mp/h

Today

Good 38 US AQI

Human face indicating AQI level
Weather icon95°75.2°
Wind rotating 148 degree

8.9 mp/h

Sunday, Aug 1

Good 30 US AQI

Human face indicating AQI level
Weather icon93.2°73.4°
Wind rotating 309 degree

4.5 mp/h

Monday, Aug 2

Good 34 US AQI

Human face indicating AQI level
Weather icon95°77°
Wind rotating 27 degree

6.7 mp/h

Tuesday, Aug 3

Good 44 US AQI

Human face indicating AQI level
Weather icon93.2°75.2°
Wind rotating 90 degree

11.2 mp/h

Wednesday, Aug 4

Moderate 65 US AQI

Human face indicating AQI level
Weather icon91.4°73.4°
Wind rotating 161 degree

6.7 mp/h

Thursday, Aug 5

Moderate 68 US AQI

Human face indicating AQI level
Weather icon95°73.4°
Wind rotating 162 degree

13.4 mp/h

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Historical

Historic air quality graph for San Marcos

How to best protect from air pollution?

Reduce your air pollution exposure in San Marcos

Where is the cleanest air quality in San Marcos?

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