Worst air pollution Coimbatore, today and tomorrow
Today (16 July): Air quality in Coimbatore is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:30 PM (O3: 24.2/100).
Tomorrow (17 July 2026): Air quality in Coimbatore is fair. NO2 increases to fair; O3 decreases to good; all other pollutants stay as today. Pollution peaks around 11:30 PM (NO2: 21.0/100). 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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Coimbatore's air quality reflects the flat Tamil Nadu Noyyal River valley at 411 metres at the Western Ghats base, with vehicle traffic on surrounding roads and the textile manufacturing, engineering, and vehicle density corridor generating elevated PM2.5 and textile dust. The Western Ghats' occasional Nilgiri mountain breezes provide background ventilation, while the dry northeast monsoon concentrates textile industrial and vehicle emissions and Coimbatore generally maintains moderate to elevated South Indian textile industrial city readings throughout most of the year.
Today - 16 July | Pollution peaks at 15:30
AQI:
Fair
24.2/100
PM2.5 (fine particles):
Good
13.6/100
PM10 (coarse particles):
Good
7.8/100
NO2 (nitrogen dioxide):
Good
19.6/100
O3 (ozone):
Fair
24.2/100
SO2 (sulfur dioxide):
Good
6.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.1/100
PM1 (ultrafine particles):
Good
10.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 23:30
AQI:
Fair
21.0/100
PM2.5 (fine particles):
Good
10.9/100
PM10 (coarse particles):
Good
6.3/100
NO2 (nitrogen dioxide):
Fair
21.0/100
O3 (ozone):
Good
19.9/100
SO2 (sulfur dioxide):
Good
7.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.0/100
PM1 (ultrafine particles):
Good
11.4/100
Frequently Asked Questions
Is air quality bad in Coimbatore right now?
On 16 July 2026, overall air quality in Coimbatore is fair. AQI is the main air quality indicator at 24.2/100. Pollution peaks around 3:30 PM (O3: 24.2/100).
Will air quality be worse tomorrow in Coimbatore?
On 17 July 2026, air quality conditions in Coimbatore will be similar to today, with AQI forecast at fair at 21.0/100. Pollution peaks around 11:30 PM (NO2: 21.0/100).
When is air pollution at its worst in Coimbatore?
In Coimbatore, traffic on the surrounding roads and textile and manufacturing operations are the main local sources, with conditions worsening when dry spells bring strong winds. These wind events can carry dust in from the surrounding arid landscape. Rainfall through the monsoon usually keeps levels in check.
Are air quality levels in Coimbatore 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