Worst air pollution Chilpancingo, today and tomorrow
Today (9 August): Air quality in Chilpancingo is fair. O3 is fair; AQI, PM2.5, and PM10 are medium; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (PM10: 54.9/100).
Tomorrow (10 August 2026): Air quality in Chilpancingo is poor. AQI worsens to poor; PM10 increases to poor; O3 decreases to good; all other pollutants stay as today. Pollution peaks around 4:00 AM (PM10: 70.2/100). 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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Chilpancingo's air quality reflects the Guerrero Sierra Madre del Sur's Huacapa River valley at 1,360 metres, with vehicle traffic on surrounding roads and the government, services, and agricultural corridor contributing local sources. The surrounding mountain ranges create topographic enclosure, while winter inversions in the enclosed mountain valley create seasonal challenges and Chilpancingo generally maintains moderate Mexican southern highland valley capital readings throughout most of the year.
Today - 9 August | Pollution peaks at 23:00
AQI:
Medium
54.9/100
PM2.5 (fine particles):
Medium
44.9/100
PM10 (coarse particles):
Medium
54.9/100
NO2 (nitrogen dioxide):
Good
1.9/100
O3 (ozone):
Fair
21.2/100
SO2 (sulfur dioxide):
Good
2.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.3/100
PM1 (ultrafine particles):
Good
10.0/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 04:00
AQI:
Poor
70.2/100
PM2.5 (fine particles):
Medium
49.6/100
PM10 (coarse particles):
Poor
70.2/100
NO2 (nitrogen dioxide):
Good
2.0/100
O3 (ozone):
Good
19.7/100
SO2 (sulfur dioxide):
Good
2.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.6/100
PM1 (ultrafine particles):
Good
12.5/100
Frequently Asked Questions
Is air quality bad in Chilpancingo right now?
On 9 August 2026, overall air quality in Chilpancingo is fair. O3 is the main pollutant at 21.2/100. Pollution peaks around 11:00 PM (PM10: 54.9/100).
Will air quality be worse tomorrow in Chilpancingo?
On 10 August 2026, air quality conditions in Chilpancingo will be worse than today, with AQI forecast at poor at 70.2/100. Pollution peaks around 4:00 AM (PM10: 70.2/100).
When is air pollution at its worst in Chilpancingo?
Pollution in Chilpancingo typically rises when road traffic as well as agricultural burning combine, especially once the surrounding valley traps air close to the ground. The bowl-like terrain here limits how quickly pollutants can escape. This tends to happen most in winter, when inversions are most common.
Are air quality levels in Chilpancingo 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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