Worst air pollution Chetumal, today and tomorrow
Today (16 July): Air quality in Chetumal is poor. AQI and PM10 are poor; PM2.5 is medium; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (PM10: 64.2/100).
Tomorrow (17 July 2026): Air quality in Chetumal is medium. AQI improves to medium; PM10 decreases to medium; all other pollutants stay as today. Pollution peaks around 5:00 AM (PM10: 56.9/100). 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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Chetumal's air quality benefits from its exceptional Caribbean Sea and Chetumal Bay coastal position adjacent to Belize, with consistent Caribbean northeast trade winds providing reliable maritime ventilation. Vehicle traffic on surrounding roads and the government, border trade, and services corridor contribute modest local sources, while the outstanding Caribbean coastal exposure and the consistent trade wind geometry generally maintain Chetumal among Mexico's more moderately ventilated Caribbean coastal border city environments throughout most of the year.
Today - 16 July | Pollution peaks at 08:00
AQI:
Poor
64.2/100
PM2.5 (fine particles):
Medium
46.7/100
PM10 (coarse particles):
Poor
64.2/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Good
18.2/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.0/100
PM1 (ultrafine particles):
Good
8.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 05:00
AQI:
Medium
56.9/100
PM2.5 (fine particles):
Medium
43.5/100
PM10 (coarse particles):
Medium
56.9/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
18.7/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Good
7.5/100
Frequently Asked Questions
Is air quality bad in Chetumal right now?
On 16 July 2026, overall air quality in Chetumal is poor. AQI is the main air quality indicator at 64.2/100. Pollution peaks around 8:00 AM (PM10: 64.2/100).
Will air quality be worse tomorrow in Chetumal?
On 17 July 2026, air quality conditions in Chetumal will be better than today, with AQI forecast at medium at 56.9/100. Pollution peaks around 5:00 AM (PM10: 56.9/100).
When is air pollution at its worst in Chetumal?
The biggest local contributor to pollution in Chetumal is road traffic, particularly once onshore breezes fall calm. Maritime airflow normally ventilates the area well, though calmer spells let levels rise. This natural ventilation is one reason coastal areas often see better readings than inland cities.
Are air quality levels in Chetumal 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