What is the air quality in Pematangsiantar?

Pematangsiantar, Indonesia has an annual US AQI of 67 (Polluted) and average PM2.5 of 17.7 µg/m³, ranking #2950 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Pematangsiantar?

December is typically the cleanest month (AQI 57) and October the most polluted (AQI 73).

Where does Pematangsiantar's air quality data come from?

PM2.5: 1998–2024 (satellite). From satellite data, because no government monitor covers the city. Full sources are on the methodology page.

Pematangsiantar, Indonesia — Air Quality & Clean City Guide 2026

Pematangsiantar Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2950	Pematangsiantar, Indonesia	Asia	AQI 67	PM2.5 17.7 µg/m³