Guwahati vs Vellore
Side-by-side air quality comparison between Guwahati and Vellore.
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, Guwahati averaged an AQI of 123 while Vellore averaged 61 — a 62-point (102%) gap, with Guwahati the more polluted and Vellore the cleaner of the two. On 303 days when both cities reported, Vellore was cleaner on 280 of them; the average daily gap was 97 AQI points.
Seasonality & days
Guwahati peaks in January, while Vellore peaks in December. Guwahati logged 0.1% Severe days and 44.9% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Guwahati 105 days, Vellore 23 days.
Year-over-year progress
Guwahati has worsened by 14 AQI points (12.8%) from 2019 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Guwahati reached AQI 420 at Railway Colony (PCBA) on 2023-01-15; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Guwahati spans 4 CPCB stations with a 26-point spread (min 118, max 144); Vellore spans 1 stations with a 0-point spread (min 70, max 70).