Worst air pollution Encinitas, today and tomorrow
Today (15 July): Air quality in Encinitas is fair. AQI, PM10, and O3 are fair; PM2.5, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (PM10: 30.5/100).
Tomorrow (16 July 2026): Air quality in Encinitas is fair. All pollutants stay as today. Pollution peaks around 8:00 AM (O3: 28.9/100). 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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Encinitas' air quality benefits from its direct Pacific Ocean coastal exposure in San Diego County's North Coast, with consistent onshore sea breezes providing reliable maritime ventilation along this scenic coastal community. Vehicle emissions from I-5 are the primary local source, while the coastal position provides significantly better conditions than the inland San Diego County valleys, and Encinitas' combination of coastal canyon topography and Pacific exposure makes it one of San Diego County's more reliably clean coastal urban environments.
Today - 15 July | Pollution peaks at 09:00
AQI:
Fair
30.5/100
PM2.5 (fine particles):
Good
19.3/100
PM10 (coarse particles):
Fair
30.5/100
NO2 (nitrogen dioxide):
Good
1.1/100
O3 (ozone):
Fair
28.3/100
SO2 (sulfur dioxide):
Good
2.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
3.4/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 08:00
AQI:
Fair
28.9/100
PM2.5 (fine particles):
Good
14.2/100
PM10 (coarse particles):
Fair
23.9/100
NO2 (nitrogen dioxide):
Good
1.5/100
O3 (ozone):
Fair
28.9/100
SO2 (sulfur dioxide):
Good
2.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
3.1/100
Pollen forecast in Encinitas
View pollen forecastFrequently Asked Questions
Is air quality bad in Encinitas right now?
On 15 July 2026, overall air quality in Encinitas is fair. AQI is the main air quality indicator at 30.5/100. Pollution peaks around 9:00 AM (PM10: 30.5/100).
Will air quality be worse tomorrow in Encinitas?
On 16 July 2026, air quality conditions in Encinitas will be similar to today, with AQI forecast at fair at 28.9/100. Pollution peaks around 8:00 AM (O3: 28.9/100).
When is air pollution at its worst in Encinitas?
Encinitas's air quality has a clear seasonal rhythm. Typically, the cleanest air usually comes in winter, when storms periodically flush pollution out of the basin, while hot, sunny summer conditions drive persistent ozone problems, compounded by wildfire smoke risk into early autumn. Coastal breezes offer some relief compared to inland valley locations that see heavier smog buildup.
Are air quality levels in Encinitas 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