Worst air pollution Tuxtla, today and tomorrow
Today (9 August): Air quality in Tuxtla is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 22.0/100).
Tomorrow (10 August 2026): Air quality in Tuxtla is fair. All pollutants stay as today. Pollution peaks around 5:00 AM (O3: 22.0/100). 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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Tuxtla's air quality reflects the Chiapas Central Depression's enclosed Grijalva River valley basin at 523 metres between the Sierra Madre de Chiapas and the Chiapas Highlands, with vehicle traffic on surrounding roads and the government, services, and agricultural corridor contributing local sources. The valley's topographic enclosure creates concentration under calm anticyclonic conditions, while the tropical climate's seasonal rain provides periodic atmospheric cleansing and Tuxtla generally maintains moderate Mexican southern highland valley capital readings throughout most of the year.
Today - 9 August | Pollution peaks at 08:00
AQI:
Fair
22.0/100
PM2.5 (fine particles):
Good
11.8/100
PM10 (coarse particles):
Good
14.2/100
NO2 (nitrogen dioxide):
Good
3.2/100
O3 (ozone):
Fair
22.0/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Good
5.6/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 05:00
AQI:
Fair
22.0/100
PM2.5 (fine particles):
Good
12.7/100
PM10 (coarse particles):
Good
15.0/100
NO2 (nitrogen dioxide):
Good
2.9/100
O3 (ozone):
Fair
22.0/100
SO2 (sulfur dioxide):
Good
1.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.6/100
PM1 (ultrafine particles):
Good
5.8/100
Frequently Asked Questions
Is air quality bad in Tuxtla right now?
On 9 August 2026, overall air quality in Tuxtla is fair. AQI is the main air quality indicator at 22.0/100. Pollution peaks around 8:00 AM (O3: 22.0/100).
Will air quality be worse tomorrow in Tuxtla?
On 10 August 2026, air quality conditions in Tuxtla will be similar to today, with AQI forecast at fair at 22.0/100. Pollution peaks around 5:00 AM (O3: 22.0/100).
When is air pollution at its worst in Tuxtla?
Tuxtla usually sees its poorest air quality when vehicle traffic and agricultural activity coincide with periods when weather conditions turn unfavourable. Day-to-day conditions here depend heavily on the weather. Local weather patterns add further day-to-day variation.
Are air quality levels in Tuxtla 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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