What is the air quality in Jecheon?

Jecheon, South Korea has an annual US AQI of 77 (Polluted) and average PM2.5 of 22.1 µg/m³, ranking #3631 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Jecheon?

September is typically the cleanest month (AQI 54) and January the most polluted (AQI 90).

Where does Jecheon's air quality data come from?

PM2.5: 1998–2026 (monitors 2015–2026, satellite 1998–2015, 2020; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Jecheon, South Korea — Air Quality & Clean City Guide 2026

Jecheon Air Quality Data

Global rank	City	Continent	AQI	PM2.5
3631	Jecheon, South Korea	Asia	AQI 77	PM2.5 22.1 µg/m³