Worst air pollution Tecate, today and tomorrow
Today (20 September): Air quality in Tecate is poor. AQI and PM10 are poor; PM2.5 is moderate; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (PM10: 64.5/100).
Tomorrow (21 September 2026): Air quality in Tecate is moderate. AQI improves to moderate; PM2.5 decreases to fair; PM10 decreases to moderate; all other pollutants stay as today. Pollution peaks around 12:00 AM (PM10: 42.3/100). 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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Tecate's air quality reflects the Baja California-California border position adjacent to the famous Tecate brewery at 510 metres, with vehicle traffic on surrounding roads and the maquiladora manufacturing, Tecate beer brewing, and border crossing corridor contributing distinctive fermentation organic aerosols alongside vehicle and industrial sources. The Pacific coastal maritime influence and the elevated plateau position provide background ventilation, while the brewery's distinctive yeast emissions and the border crossing represent Tecate's most locally unique air quality contributions throughout the year.
Today - 20 September | Pollution peaks at 10:00
AQI:
Poor
64.5/100
PM2.5 (fine particles):
Moderate
48.8/100
PM10 (coarse particles):
Poor
64.5/100
NO2 (nitrogen dioxide):
Good
4.8/100
O3 (ozone):
Good
17.6/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.4/100
HCHO (formaldehyde):
Good
0.8/100
PM1 (ultrafine particles):
Good
9.3/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 00:00
AQI:
Moderate
42.3/100
PM2.5 (fine particles):
Fair
39.5/100
PM10 (coarse particles):
Moderate
42.3/100
NO2 (nitrogen dioxide):
Good
7.1/100
O3 (ozone):
Good
18.0/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.4/100
HCHO (formaldehyde):
Good
1.1/100
PM1 (ultrafine particles):
Good
6.2/100
Pollen forecast in Tecate
View pollen forecastFrequently Asked Questions
Is air quality bad in Tecate right now?
On 20 September 2026, overall air quality in Tecate is poor. AQI is the main air quality indicator at 64.5/100. Pollution peaks around 10:00 AM (PM10: 64.5/100).
Will air quality be worse tomorrow in Tecate?
On 21 September 2026, air quality conditions in Tecate will be better than today, with AQI forecast at moderate at 42.3/100. Pollution peaks around 12:00 AM (PM10: 42.3/100).
When is air pollution at its worst in Tecate?
In Tecate, traffic on the surrounding roads together with textile and manufacturing operations are the main local sources, with conditions worsening when dry spells bring strong winds. Strong seasonal winds can lift dust from the surrounding dry terrain and push particulate levels sharply higher. Maritime airflow normally ventilates the area well, though calmer spells let levels rise.
Are air quality levels in Tecate 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: 21 September 2026 at 03:04 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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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