What is the air quality in Saijō?

Saijō, Japan has an annual US AQI of 65 (Polluted) and average PM2.5 of 16.2 µg/m³, ranking #2720 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Saijō?

December is typically the cleanest month (AQI 58) and May the most polluted (AQI 74).

Where does Saijō's air quality data come from?

PM2.5: 1998–2025 (monitors 2010–2025, satellite 1998–2010; 2025 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Saijō, Japan — Air Quality & Clean City Guide 2026

Saijō Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2720	Saijō, Japan	Asia	AQI 65	PM2.5 16.2 µg/m³