Worst air pollution Sunset District - San Francisco, today and tomorrow
Today (15 July): Air quality in Sunset District is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 39.4/100).
Tomorrow (16 July 2026): Air quality in Sunset District is medium. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 10:00 AM (O3: 41.0/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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San Francisco's Sunset District records moderate San Francisco air quality, with the flat ocean-facing neighbourhood exposed to consistent Pacific fog and wind that keeps baseline pollution low. Karl the Fog provides natural air washing on many mornings, and the neighbourhood's predominantly residential character limits local emission sources relative to denser eastern districts.
Today - 15 July | Pollution peaks at 08:00
AQI:
Fair
39.4/100
PM2.5 (fine particles):
Good
14.1/100
PM10 (coarse particles):
Good
8.7/100
NO2 (nitrogen dioxide):
Good
5.3/100
O3 (ozone):
Fair
39.4/100
SO2 (sulfur dioxide):
Good
2.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.2/100
PM1 (ultrafine particles):
Good
7.7/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 10:00
AQI:
Medium
41.0/100
PM2.5 (fine particles):
Good
19.6/100
PM10 (coarse particles):
Good
9.5/100
NO2 (nitrogen dioxide):
Good
11.4/100
O3 (ozone):
Medium
41.0/100
SO2 (sulfur dioxide):
Good
2.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Good
12.9/100
Other Landmarks in San Francisco
Sports venues in San Francisco
Frequently Asked Questions
Is air quality bad in Sunset District right now?
On 15 July 2026, overall air quality in Sunset District is fair. AQI is the main air quality indicator at 39.4/100. Pollution peaks around 8:00 AM (O3: 39.4/100).
Will air quality be worse tomorrow in Sunset District?
On 16 July 2026, air quality conditions in Sunset District will be better than today, with AQI forecast at medium at 41.0/100. Pollution peaks around 10:00 AM (O3: 41.0/100).
When is air pollution at its worst in Sunset District?
Conditions at Sunset District vary noticeably across the seasons: late winter and spring tend to have the cleanest conditions, once winter rains settle in, but the long dry stretch from midsummer into autumn brings both ozone and wildfire smoke risk. Wine country and inland valley locations tend to see more smoke buildup than the immediate coast.
Are air quality levels in Sunset District 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.
Want to see air quality forecasts for other cities in United States?
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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