What is the air quality trend in Coimbatore?

Over the past 14 days, Coimbatore had an average AQI of 76 based on station measurements. The worst day was 2026-05-21 with AQI 100.

How is Coimbatore air quality measured?

Air quality in Coimbatore is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Coimbatore, India

Name: Coimbatore Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Coimbatore, India.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

127h

PM2.5 Station

127h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-28	72	30–167	26.0 µg/m³	11h	1
2026-05-27	78	16–168	28.7 µg/m³	8h	1
2026-05-26	93	13–197	38.6 µg/m³	10h	1
2026-05-25	89	9–325	56.1 µg/m³	10h	1
2026-05-24	87	13–153	29.9 µg/m³	8h	1
2026-05-23	98	17–338	52.5 µg/m³	9h	1
2026-05-22	80	3–174	30.7 µg/m³	11h	1
2026-05-21	100	24–189	45.7 µg/m³	9h	1
2026-05-20	57	17–143	16.8 µg/m³	10h	1
2026-05-19	41	16–88	11.9 µg/m³	8h	1
2026-05-18	66	15–155	22.5 µg/m³	9h	1
2026-05-17	49	2–138	15.4 µg/m³	9h	1
2026-05-16	77	5–149	25.4 µg/m³	5h	1
2026-05-15	80	9–153	27.3 µg/m³	10h	1

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