Guwahati vs Howrah
Side-by-side air quality comparison between Guwahati and Howrah.
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 Howrah averaged 126 — a 3-point (2%) gap, with Howrah the more polluted and Guwahati the cleaner of the two. On 1750 days when both cities reported, Guwahati was cleaner on 1116 of them; the average daily gap was 59 AQI points.
Seasonality & days
Guwahati peaks in January, while Howrah peaks in December. Guwahati logged 0.1% Severe days and 44.9% Good-or-Satisfactory days; Howrah was 0.7% Severe and 48.7% Good-or-Satisfactory. Longest clean-air streaks: Guwahati 105 days, Howrah 120 days.
Year-over-year progress
Guwahati has worsened by 14 AQI points (12.8%) from 2019 to 2024; Howrah has improved by 32 AQI points (20.3%) over the same window. The worst recorded day for Guwahati reached AQI 420 at Railway Colony (PCBA) on 2023-01-15; Howrah hit AQI 500 at Ghusuri (WBPCB) on 2017-04-15.
Station-level disparity
Guwahati spans 4 CPCB stations with a 26-point spread (min 118, max 144); Howrah spans 5 stations with a 116-point spread (min 111, max 227).