Worst air pollution San Francisco del Rincón, today and tomorrow
Today (16 July): Air quality in San Francisco del Rincón is poor. AQI and PM10 are poor; O3 is fair; PM2.5 is medium; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 AM (PM10: 70.9/100).
Tomorrow (17 July 2026): Air quality in San Francisco del Rincón is medium. AQI improves to medium; PM10 decreases to medium; O3 decreases to good; all other pollutants stay as today. Pollution peaks around 4:00 AM (PM10: 54.4/100). 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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San Francisco del Rincón's air quality reflects the flat Guanajuato Bajío plateau at 1,724 metres, with vehicle traffic on surrounding roads and the jean and clothing manufacturing — San Francisco del Rincón being Mexico's denim capital — and agricultural corridor contributing distinctive textile dye VOC emissions alongside primary vehicle sources. The elevated plateau position aids dispersal on most days, while the denim manufacturing's distinctive chemical dye emissions represent San Francisco del Rincón's most locally unique air quality contribution throughout most of the year.
Today - 16 July | Pollution peaks at 01:00
AQI:
Poor
70.9/100
PM2.5 (fine particles):
Medium
50.2/100
PM10 (coarse particles):
Poor
70.9/100
NO2 (nitrogen dioxide):
Good
0.3/100
O3 (ozone):
Fair
23.3/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.4/100
PM1 (ultrafine particles):
Good
9.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 04:00
AQI:
Medium
54.4/100
PM2.5 (fine particles):
Medium
40.9/100
PM10 (coarse particles):
Medium
54.4/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Good
18.7/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.4/100
PM1 (ultrafine particles):
Good
5.6/100
Frequently Asked Questions
Is air quality bad in San Francisco del Rincón right now?
On 16 July 2026, overall air quality in San Francisco del Rincón is poor. AQI is the main air quality indicator at 70.9/100. Pollution peaks around 1:00 AM (PM10: 70.9/100).
Will air quality be worse tomorrow in San Francisco del Rincón?
On 17 July 2026, air quality conditions in San Francisco del Rincón will be better than today, with AQI forecast at medium at 54.4/100. Pollution peaks around 4:00 AM (PM10: 54.4/100).
When is air pollution at its worst in San Francisco del Rincón?
In San Francisco del Rincón, road traffic, steel, cement, and chemical production, together with textile and manufacturing operations are the main local sources, with conditions worsening when still air allows pollutants to build up. Local weather patterns add further variation on top of these sources. Local weather patterns add further day-to-day variation.
Are air quality levels in San Francisco del Rincón 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