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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Data source
* AQI modeled using satellite data

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Weather

What is the current weather in San Marcos?

WeatherClear sky
Temperature75.2°C
Humidity68%
Wind5.8 mp/h
Pressure1014 mb

live aqi city ranking

Real-time USA city ranking

#cityUS AQI
1Union

156

2Paradise

155

3Churchville

105

4Charlotte Hall

104

5Ashburn

101

6La Jolla Shores

99

7Baldwin City

93

8Hagerstown

87

9Salem

87

10Westminster

81

(local time)

SEE WORLD AQI RANKING

live San Marcos aqi ranking

Real-time San Marcos air quality ranking

City AQI based on satellite data. No ground level station currently available in San Marcos.

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US AQI

34 *

live AQI index
Good

Overview

What is the current air quality in San Marcos?

Air pollution levelAir quality indexMain pollutant
Good34 US AQIPM2.5
PollutantsConcentration
PM2.5
8.1 µg/m³

Health Recommendations

How to protect from air pollution in San Marcos?

Open your windows to bring clean, fresh air indoors
Enjoy outdoor activities

Forecast

San Marcos air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Monday, Jun 3

Good38 US AQI

Tuesday, Jun 4

Moderate53 US AQI

Wednesday, Jun 5

Good47 US AQI

Today

Good27 US AQI

face icon
weather icon80.6°59°

6.7 mp/h

Sunday, Aug 9

Good16 US AQI

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weather icon80.6°57.2°

6.7 mp/h

Monday, Aug 10

Good18 US AQI

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weather icon82.4°59°

6.7 mp/h

Tuesday, Aug 11

Good30 US AQI

face icon
weather icon84.2°59°

6.7 mp/h

Wednesday, Aug 12

Good42 US AQI

face icon
weather icon86°62.6°

4.5 mp/h

Thursday, Aug 13

Good48 US AQI

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weather icon89.6°68°

6.7 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

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Where is the cleanest air quality in San Marcos?

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