Worst air pollution Buellton, today and tomorrow
Today (20 September): Air quality in Buellton is moderate. AQI, PM2.5, PM10, and NO2 are moderate; O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (NO2: 45.8/100).
Tomorrow (21 September 2026): Air quality in Buellton is moderate. PM10 decreases to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 AM (PM2.5: 42.3/100). Airmine updates local air quality forecasts four times daily.
Get the full experience in the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
In Buellton, traffic stays fairly light here, leaving wind-blown dust from nearby fields as a bigger factor than vehicle emissions. Green space in the area offers some natural filtering, softening the local particulate load somewhat. Conditions on any given day depend heavily on wind speed and direction locally. Nearby areas with a similar setup tend to show a comparable air quality baseline.
Today - 20 September | Pollution peaks at 15:00
AQI:
Moderate
45.8/100
PM2.5 (fine particles):
Moderate
43.8/100
PM10 (coarse particles):
Moderate
43.8/100
NO2 (nitrogen dioxide):
Moderate
45.8/100
O3 (ozone):
Good
19.6/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.5/100
HCHO (formaldehyde):
Good
2.0/100
PM1 (ultrafine particles):
Good
9.7/100
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):
Moderate
42.3/100
PM10 (coarse particles):
Fair
37.6/100
NO2 (nitrogen dioxide):
Moderate
40.9/100
O3 (ozone):
Fair
31.6/100
SO2 (sulfur dioxide):
Good
1.2/100
CO (carbon monoxide):
Good
0.5/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Good
8.6/100
Pollen forecast in Buellton
View pollen forecastFrequently Asked Questions
Is air quality bad in Buellton right now?
On 20 September 2026, overall air quality in Buellton is moderate. AQI is the main air quality indicator at 45.8/100. Pollution peaks around 3:00 PM (NO2: 45.8/100).
Will air quality be worse tomorrow in Buellton?
On 21 September 2026, air quality conditions in Buellton will be similar to today, with AQI forecast at moderate at 42.3/100. Pollution peaks around 12:00 AM (PM2.5: 42.3/100).
When is air pollution at its worst in Buellton?
From October to December, average wind speeds run around 13 km/h with temperatures near 16°C, calm and cool enough to let particulate matter and smoke build up near the ground rather than disperse. From July to September, temperatures average around 21°C, warm enough for strong sun and heat to drive ground-level ozone formation.
Are air quality levels in Buellton 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.
Want to see air quality forecasts for other cities in United States?
Check air quality in other popular cities:
Data provided by Airmine — Last update: 20 September 2026 at 14:33 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.
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.
Get the full experience in the Airmine app.