What is the air quality in Gangtok?

Gangtok, India has an annual US AQI of 73 (Polluted) and average PM2.5 of 21.3 µg/m³, ranking #3450 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Gangtok?

July is typically the cleanest month (AQI 44) and February the most polluted (AQI 105).

Where does Gangtok's air quality data come from?

PM2.5: 1998–2026 (monitors 2022–2026, satellite 1998–2022, 2024; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Gangtok, India — Air Quality & Clean City Guide 2026

Gangtok Air Quality Data

Global rank	City	Continent	AQI	PM2.5
3450	Gangtok, India	Asia	AQI 73	PM2.5 21.3 µg/m³