Worst air pollution Playas de Rosarito, today and tomorrow
Today (9 August): Air quality in Playas de Rosarito is fair. AQI, PM10, and O3 are fair; PM2.5, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 PM (PM10: 24.9/100).
Tomorrow (10 August 2026): Air quality in Playas de Rosarito is fair. PM10 decreases to good; all other pollutants stay as today. Pollution peaks around 9:00 AM (O3: 20.2/100). 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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Playas de Rosarito's air quality benefits from its exceptional Pacific Ocean coastal position in Baja California adjacent to Tijuana, with consistent Pacific maritime breezes providing reliable ventilation. Vehicle traffic on surrounding roads and the tourism, maquiladora, and residential corridor contribute local sources, while the outstanding Pacific coastal exposure generally maintains Rosarito among northwestern Mexico's more reliably ventilated coastal communities throughout most of the year.
Today - 9 August | Pollution peaks at 18:00
AQI:
Fair
24.9/100
PM2.5 (fine particles):
Good
19.3/100
PM10 (coarse particles):
Fair
24.9/100
NO2 (nitrogen dioxide):
Good
0.5/100
O3 (ozone):
Fair
22.7/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
5.1/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 09:00
AQI:
Fair
20.2/100
PM2.5 (fine particles):
Good
15.1/100
PM10 (coarse particles):
Good
16.7/100
NO2 (nitrogen dioxide):
Good
0.9/100
O3 (ozone):
Fair
20.2/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.1/100
PM1 (ultrafine particles):
Good
5.2/100
Frequently Asked Questions
Is air quality bad in Playas de Rosarito right now?
On 9 August 2026, overall air quality in Playas de Rosarito is fair. AQI is the main air quality indicator at 24.9/100. Pollution peaks around 6:00 PM (PM10: 24.9/100).
Will air quality be worse tomorrow in Playas de Rosarito?
On 10 August 2026, air quality conditions in Playas de Rosarito will be similar to today, with AQI forecast at fair at 20.2/100. Pollution peaks around 9:00 AM (O3: 20.2/100).
When is air pollution at its worst in Playas de Rosarito?
Pollution in Playas de Rosarito typically rises when traffic emissions along with seasonal tourism traffic combine, especially once maritime winds die down. Onshore breezes usually help clear the air, but pollution can build up when winds are light. Areas further inland without this ventilation tend to fare worse.
Are air quality levels in Playas de Rosarito 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: 9 August 2026 at 20:27 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.
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