Coimbatore vs Siliguri
Side-by-side air quality comparison between Coimbatore and Siliguri.
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 Siliguri averaged 81 — a 15-point (23%) gap, with Siliguri the more polluted and Coimbatore the cleaner of the two. On 887 days when both cities reported, Coimbatore was cleaner on 539 of them; the average daily gap was 50 AQI points.
Seasonality & days
Coimbatore peaks in November, while Siliguri peaks in February. Coimbatore logged 0% Severe days and 90.5% Good-or-Satisfactory days; Siliguri was 0.1% Severe and 61.8% Good-or-Satisfactory. Longest clean-air streaks: Coimbatore 32 days, Siliguri 180 days.
Year-over-year progress
Coimbatore has improved by 5 AQI points (7%) from 2019 to 2024; Siliguri has improved by 39 AQI points (32.5%) over the same window. The worst recorded day for Coimbatore reached AQI 279 at SIDCO Kurichi (TNPCB) on 2024-09-28; Siliguri hit AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08.
Station-level disparity
Coimbatore spans 2 CPCB stations with a 1-point spread (min 63, max 64); Siliguri spans 1 stations with a 0-point spread (min 107, max 107).