Worst air pollution Juchitán de Zaragoza, today and tomorrow
Today (9 August): Air quality in Juchitán de Zaragoza 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: 22.8/100).
Tomorrow (10 August 2026): Air quality in Juchitán de Zaragoza is fair. All pollutants stay as today. Pollution peaks around 5:00 AM (O3: 22.7/100). 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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Juchitán de Zaragoza's air quality reflects the flat Oaxacan Tehuantepec Isthmus position at 24 metres, with vehicle traffic on surrounding roads and the wind energy — Juchitán being at the heart of Mexico's La Ventosa wind corridor — and agricultural corridor contributing local sources. The extraordinary Tehuano wind that drives the massive wind farms represents Juchitán's most spectacular meteorological air quality asset, providing among Mexico's most powerful natural urban ventilation throughout most of the year.
Today - 9 August | Pollution peaks at 08:00
AQI:
Fair
22.8/100
PM2.5 (fine particles):
Good
12.6/100
PM10 (coarse particles):
Good
13.6/100
NO2 (nitrogen dioxide):
Good
6.7/100
O3 (ozone):
Fair
22.8/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.2/100
PM1 (ultrafine particles):
Good
7.0/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 05:00
AQI:
Fair
22.7/100
PM2.5 (fine particles):
Good
12.8/100
PM10 (coarse particles):
Good
16.2/100
NO2 (nitrogen dioxide):
Good
4.7/100
O3 (ozone):
Fair
22.7/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.4/100
PM1 (ultrafine particles):
Good
6.3/100
Frequently Asked Questions
Is air quality bad in Juchitán de Zaragoza right now?
On 9 August 2026, overall air quality in Juchitán de Zaragoza is fair. AQI is the main air quality indicator at 22.8/100. Pollution peaks around 8:00 AM (O3: 22.8/100).
Will air quality be worse tomorrow in Juchitán de Zaragoza?
On 10 August 2026, air quality conditions in Juchitán de Zaragoza will be similar to today, with AQI forecast at fair at 22.7/100. Pollution peaks around 5:00 AM (O3: 22.7/100).
When is air pollution at its worst in Juchitán de Zaragoza?
The biggest local contributors to pollution in Juchitán de Zaragoza are vehicle traffic as well as farming and agricultural processing, particularly once winds are light and dispersion is poor. Day-to-day conditions here depend heavily on the weather. Conditions can otherwise vary considerably with the weather.
Are air quality levels in Juchitán de Zaragoza 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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