What is the air quality in Khon Kaen?

Khon Kaen, Thailand has an annual US AQI of 87 (Polluted) and average PM2.5 of 27.3 µg/m³, ranking #4093 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Khon Kaen?

August is typically the cleanest month (AQI 57) and February the most polluted (AQI 129).

Where does Khon Kaen's air quality data come from?

PM2.5: 1998–2026 (monitors 2014–2026, satellite 1998–2013, 2016–2017, 2022; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Khon Kaen, Thailand — Air Quality & Clean City Guide 2026

Khon Kaen Air Quality Data

Global rank	City	Continent	AQI	PM2.5
4093	Khon Kaen, Thailand	Asia	AQI 87	PM2.5 27.3 µg/m³