Worst air pollution Celaya, today and tomorrow
Today (16 July): Air quality in Celaya is fair. O3 is fair; AQI, PM2.5, and PM10 are medium; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 AM (PM10: 51.3/100).
Tomorrow (17 July 2026): Air quality in Celaya is medium. O3 decreases to good; all other pollutants stay as today. Pollution peaks around 6:00 AM (PM10: 47.6/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Celaya's air quality reflects the flat Guanajuato Bajío plateau at 1,754 metres, with vehicle traffic on surrounding roads and the automotive manufacturing, food processing, and logistics corridor contributing local sources. The elevated plateau position aids dispersal on most days, while winter inversions create modest seasonal challenges and the automotive manufacturing corridor's industrial character creates distinctive local emission profiles throughout most of the year.
Today - 16 July | Pollution peaks at 00:00
AQI:
Medium
51.3/100
PM2.5 (fine particles):
Medium
48.1/100
PM10 (coarse particles):
Medium
51.3/100
NO2 (nitrogen dioxide):
Good
0.3/100
O3 (ozone):
Fair
20.9/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.6/100
PM1 (ultrafine particles):
Good
10.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 06:00
AQI:
Medium
47.6/100
PM2.5 (fine particles):
Medium
40.9/100
PM10 (coarse particles):
Medium
47.6/100
NO2 (nitrogen dioxide):
Good
0.3/100
O3 (ozone):
Good
19.1/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.8/100
PM1 (ultrafine particles):
Good
7.0/100
Frequently Asked Questions
Is air quality bad in Celaya right now?
On 16 July 2026, overall air quality in Celaya is fair. O3 is the main pollutant at 20.9/100. Pollution peaks around 12:00 AM (PM10: 51.3/100).
Will air quality be worse tomorrow in Celaya?
On 17 July 2026, air quality conditions in Celaya will be better than today, with AQI forecast at medium at 47.6/100. Pollution peaks around 6:00 AM (PM10: 47.6/100).
When is air pollution at its worst in Celaya?
Air quality in Celaya tends to be worse when vehicle traffic and textile and manufacturing operations build up and windblown dust events occur. Strong seasonal winds can lift dust from the surrounding dry terrain and push particulate levels sharply higher. These episodes tend to cluster in spring and autumn.
Are air quality levels in Celaya 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.
Check air quality in other popular cities:
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