Worst air pollution Cozumel, today and tomorrow
Today (16 July): Air quality in Cozumel is fair. O3 is fair; AQI, PM2.5, and PM10 are medium; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 AM (PM10: 55.3/100).
Tomorrow (17 July 2026): Air quality in Cozumel is medium. O3 decreases to good; all other pollutants stay as today. Pollution peaks around 7:00 AM (PM10: 51.0/100). 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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Cozumel's air quality benefits from its exceptional Caribbean Sea island position, with consistent northeast Caribbean trade winds providing outstanding maritime ventilation around this famous diving resort island. Vehicle traffic on surrounding roads and the cruise ship tourism and diving services corridor contribute seasonal local sources, while the extraordinary island trade wind exposure effectively disperses most local emissions and Cozumel generally maintains among Mexico's cleaner Caribbean island resort environments throughout most of the year.
Today - 16 July | Pollution peaks at 01:00
AQI:
Medium
55.3/100
PM2.5 (fine particles):
Medium
51.0/100
PM10 (coarse particles):
Medium
55.3/100
NO2 (nitrogen dioxide):
Good
0.5/100
O3 (ozone):
Fair
20.9/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.6/100
PM1 (ultrafine particles):
Good
11.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 07:00
AQI:
Medium
51.0/100
PM2.5 (fine particles):
Medium
42.7/100
PM10 (coarse particles):
Medium
51.0/100
NO2 (nitrogen dioxide):
Good
0.4/100
O3 (ozone):
Good
19.1/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.8/100
PM1 (ultrafine particles):
Good
8.2/100
Frequently Asked Questions
Is air quality bad in Cozumel right now?
On 16 July 2026, overall air quality in Cozumel is fair. O3 is the main pollutant at 20.9/100. Pollution peaks around 1:00 AM (PM10: 55.3/100).
Will air quality be worse tomorrow in Cozumel?
On 17 July 2026, air quality conditions in Cozumel will be better than today, with AQI forecast at medium at 51.0/100. Pollution peaks around 7:00 AM (PM10: 51.0/100).
When is air pollution at its worst in Cozumel?
Air quality in Cozumel tends to be worse when traffic emissions along with seasonal tourism traffic build up and maritime winds die down. Onshore breezes usually help clear the air, but pollution can build up when winds are light. This coastal advantage is less pronounced during still, high-pressure weather.
Are air quality levels in Cozumel 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