Worst air pollution Comitán, today and tomorrow

Today (16 July): Air quality in Comitán is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 24.0/100).
Tomorrow (17 July 2026): Air quality in Comitán is fair. PM2.5 increases to fair; PM10 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 PM (PM10: 25.1/100). Airmine updates local air quality forecasts four times daily.

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

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Comitán's air quality reflects the Chiapas Highland's Los Altos enclosed plateau at 1,520 metres surrounded by the Cuchumatanes and Altos de Chiapas ranges, with vehicle traffic on surrounding roads and the agricultural, services, and government corridor contributing local sources. The plateau's topographic enclosure creates concentration under inversions, while the elevated position and the tropical highland climate's frequent rain provide effective atmospheric cleansing and Comitán generally maintains moderate Mexican southern highland plateau readings throughout most of the year.

Today - 16 July | Pollution peaks at 07:00

AQI:

Fair

24.0/100

PM2.5 (fine particles):

Good

17.1/100

PM10 (coarse particles):

Good

17.8/100

NO2 (nitrogen dioxide):

Good

7.1/100

O3 (ozone):

Fair

24.0/100

SO2 (sulfur dioxide):

Good

2.0/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

4.8/100

PM1 (ultrafine particles):

Good

10.8/100

Levels show the poorest local air quality during the day

Tomorrow - 17 July | Pollution peaks at 12:00

AQI:

Fair

25.1/100

PM2.5 (fine particles):

Fair

20.4/100

PM10 (coarse particles):

Fair

25.1/100

NO2 (nitrogen dioxide):

Good

5.9/100

O3 (ozone):

Fair

20.5/100

SO2 (sulfur dioxide):

Good

1.4/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

3.6/100

PM1 (ultrafine particles):

Good

7.3/100

Frequently Asked Questions

Is air quality bad in Comitán right now?

On 16 July 2026, overall air quality in Comitán is fair. AQI is the main air quality indicator at 24.0/100. Pollution peaks around 7:00 AM (O3: 24.0/100).

Will air quality be worse tomorrow in Comitán?

On 17 July 2026, air quality conditions in Comitán will be similar to today, with AQI forecast at fair at 25.1/100. Pollution peaks around 12:00 PM (PM10: 25.1/100).

When is air pollution at its worst in Comitán?

The biggest local contributors to pollution in Comitán are traffic emissions along with agricultural burning, particularly once weather conditions turn unfavourable. Background emissions and local weather both shape how conditions change from day to day. Background emissions and local weather both play a role in day-to-day changes.

Are air quality levels in Comitán based on measurements or forecasts?

It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.

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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)

This forecast is produced independently using Airmine's own atmospheric data and models.

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.

For long term forecasts and maps, see the Airmine app