Highest air pollution Tijuana, today and tomorrow
Today (28 June): Air quality in Tijuana is fair. AQI, PM2.5, and PM10 are fair; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (PM10: 32.3/100).
Tomorrow (29 June 2026): Air quality in Tijuana is fair. PM2.5 decreases to good; PM10 decreases to good; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 8:00 AM (O3: 21.9/100). 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
Tijuana's air quality reflects the US-Mexico border position adjacent to San Diego, with vehicle traffic on the surrounding expressways and the maquiladora manufacturing, international border crossing, and construction corridor generating elevated PM2.5 and NOₓ. The Pacific coastal proximity provides limited sea breeze ventilation, while the extraordinary San Ysidro border crossing vehicle concentration and the flat Tijuana River valley's limited topographic dispersal maintain Tijuana among northwestern Mexico's more persistently vehicle and border crossing-influenced urban environments throughout the year.
Today - 28 June | Pollution peaks at 15:00
AQI:
Fair
32.3/100
PM2.5 (fine particles):
Fair
24.9/100
PM10 (coarse particles):
Fair
32.3/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Good
19.8/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.2/100
PM1 (ultrafine particles):
Good
3.7/100
Levels show the poorest local air quality during the day
Tomorrow - 29 June | Pollution peaks at 08:00
AQI:
Fair
21.9/100
PM2.5 (fine particles):
Good
13.9/100
PM10 (coarse particles):
Good
15.6/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Fair
21.9/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.4/100
PM1 (ultrafine particles):
Good
3.0/100
Pollen forecast in Tijuana
View pollen forecastFrequently Asked Questions
Is air quality bad in Tijuana right now?
On 28 June 2026, overall air quality in Tijuana is fair. AQI is the main air quality indicator at 32.3/100. Pollution peaks around 3:00 PM (PM10: 32.3/100).
Will air quality be worse tomorrow in Tijuana?
On 29 June 2026, air quality conditions in Tijuana will be similar to today, with AQI forecast at fair at 21.9/100. Pollution peaks around 8:00 AM (O3: 21.9/100).
Are air quality levels in Tijuana 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: 28 June 2026 at 18:37 CET (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
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team