Coimbatore vs Guwahati
Side-by-side air quality comparison between Coimbatore and Guwahati.
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 Guwahati averaged 123 — a 57-point (86%) gap, with Guwahati the more polluted and Coimbatore the cleaner of the two. On 983 days when both cities reported, Coimbatore was cleaner on 739 of them; the average daily gap was 80 AQI points.
Seasonality & days
Coimbatore peaks in November, while Guwahati peaks in January. Coimbatore logged 0% Severe days and 90.5% Good-or-Satisfactory days; Guwahati was 0.1% Severe and 44.9% Good-or-Satisfactory. Longest clean-air streaks: Coimbatore 32 days, Guwahati 105 days.
Year-over-year progress
Coimbatore has improved by 5 AQI points (7%) from 2019 to 2024; Guwahati has worsened by 14 AQI points (12.8%) over the same window. The worst recorded day for Coimbatore reached AQI 279 at SIDCO Kurichi (TNPCB) on 2024-09-28; Guwahati hit AQI 420 at Railway Colony (PCBA) on 2023-01-15.
Station-level disparity
Coimbatore spans 2 CPCB stations with a 1-point spread (min 63, max 64); Guwahati spans 4 stations with a 26-point spread (min 118, max 144).