Coimbatore vs Surat
Side-by-side air quality comparison between Coimbatore and Surat.
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 Surat averaged 83 — a 17-point (26%) gap, with Surat the more polluted and Coimbatore the cleaner of the two. On 247 days when both cities reported, Coimbatore was cleaner on 131 of them; the average daily gap was 52 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; Surat was 0% Severe and 55.9% Good-or-Satisfactory. Longest clean-air streaks: Coimbatore 32 days, Surat 55 days.
Year-over-year progress
Coimbatore has improved by 5 AQI points (7%) from 2019 to 2024; Surat has improved by 139 AQI points (62.6%) over the same window. The worst recorded day for Coimbatore reached AQI 279 at SIDCO Kurichi (TNPCB) on 2024-09-28; Surat hit AQI 384 at Science Center (SMC) on 2023-08-19.
Station-level disparity
Coimbatore spans 2 CPCB stations with a 1-point spread (min 63, max 64); Surat spans 1 stations with a 0-point spread (min 123, max 123).