What is the air quality in Yamagata?

Yamagata, Japan has an annual US AQI of 52 (Reasonable) and average PM2.5 of 10.5 µg/m³, ranking #944 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Yamagata?

December is typically the cleanest month (AQI 43) and May the most polluted (AQI 63).

Where does Yamagata's air quality data come from?

PM2.5: 1998–2026 (monitors 2012–2026, satellite 1998–2012, 2019; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Yamagata, Japan — Air Quality & Clean City Guide 2026

Yamagata Air Quality Data

Global rank	City	Continent	AQI	PM2.5
944	Yamagata, Japan	Asia	AQI 52	PM2.5 10.5 µg/m³