Coimbatore vs Gwalior
Side-by-side air quality comparison between Coimbatore and Gwalior.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Coimbatore averaged an AQI of 66 while Gwalior averaged 136 — a 70-point (106%) gap, with Gwalior the more polluted and Coimbatore the cleaner of the two. On 813 days when both cities reported, Coimbatore was cleaner on 749 of them; the average daily gap was 100 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Coimbatore logged 0% Severe days and 90.5% Good-or-Satisfactory days; Gwalior was 0.4% Severe and 31.5% Good-or-Satisfactory. Longest clean-air streaks: Coimbatore 32 days, Gwalior 47 days.
Year-over-year progress
Coimbatore has improved by 5 AQI points (7%) from 2019 to 2024; Gwalior has improved by 12 AQI points (8.1%) over the same window. The worst recorded day for Coimbatore reached AQI 279 at SIDCO Kurichi (TNPCB) on 2024-09-28; Gwalior hit AQI 450 at City Center (MPPCB) on 2021-11-09.
Station-level disparity
Coimbatore spans 2 CPCB stations with a 1-point spread (min 63, max 64); Gwalior spans 4 stations with a 53-point spread (min 112, max 165).