Worst air pollution Morro Bay, today and tomorrow
Today (15 July): Air quality in Morro Bay is fair. PM2.5 and PM10 are fair; AQI, NO2, and O3 are medium; SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (NO2: 44.8/100).
Tomorrow (16 July 2026): Air quality in Morro Bay is fair. PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 6:00 PM (NO2: 49.2/100). 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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Morro Bay's air quality is shaped largely by cool Central Coast marine air; onshore breeze keeps air quality consistently good. Overall, Morro Bay sees air quality that tracks fairly closely with typical conditions for its wider region. Local topography and prevailing winds both play a role in how quickly conditions change.
Today - 15 July | Pollution peaks at 15:00
AQI:
Medium
44.8/100
PM2.5 (fine particles):
Fair
28.0/100
PM10 (coarse particles):
Fair
34.6/100
NO2 (nitrogen dioxide):
Medium
44.8/100
O3 (ozone):
Medium
42.7/100
SO2 (sulfur dioxide):
Good
11.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.5/100
PM1 (ultrafine particles):
Good
15.0/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 18:00
AQI:
Medium
49.2/100
PM2.5 (fine particles):
Fair
28.9/100
PM10 (coarse particles):
Fair
30.1/100
NO2 (nitrogen dioxide):
Medium
49.2/100
O3 (ozone):
Medium
41.4/100
SO2 (sulfur dioxide):
Good
16.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Fair
24.8/100
Pollen forecast in Morro Bay
View pollen forecastFrequently Asked Questions
Is air quality bad in Morro Bay right now?
On 15 July 2026, overall air quality in Morro Bay is fair. PM10 is the main pollutant at 34.6/100. Pollution peaks around 3:00 PM (NO2: 44.8/100).
Will air quality be worse tomorrow in Morro Bay?
On 16 July 2026, air quality conditions in Morro Bay will be similar to today, with PM10 forecast at fair at 30.1/100. Pollution peaks around 6:00 PM (NO2: 49.2/100).
When is air pollution at its worst in Morro Bay?
Morro Bay follows a fairly predictable seasonal air quality pattern — winter typically brings the cleanest stretch, once occasional rain clears the basin, whereas summer and early autumn bring the highest ozone levels, and wildfire smoke can spike particulate readings sharply from August through October. The mountains ringing the basin can trap pollution close to the ground for days when winds are calm.
Are air quality levels in Morro Bay 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