What is the air quality in Sayama?

Sayama, Japan has an annual US AQI of 62 (Polluted) and average PM2.5 of 13.7 µg/m³, ranking #2323 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Sayama?

January is typically the cleanest month (AQI 55) and July the most polluted (AQI 83).

Where does Sayama's air quality data come from?

PM2.5: 1998–2025 (monitors 2013–2025, satellite 1998–2013, 2016; 2025 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Sayama, Japan — Air Quality & Clean City Guide 2026

Sayama Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2323	Sayama, Japan	Asia	AQI 62	PM2.5 13.7 µg/m³