What is the air quality in Iwakuni?

Iwakuni, Japan has an annual US AQI of 63 (Polluted) and average PM2.5 of 14.2 µg/m³, ranking #2469 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Iwakuni?

December is typically the cleanest month (AQI 53) and May the most polluted (AQI 82).

Where does Iwakuni's air quality data come from?

PM2.5: 1998–2026 (monitors 2011–2026, satellite 1998–2011; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Iwakuni, Japan — Air Quality & Clean City Guide 2026

Iwakuni Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2469	Iwakuni, Japan	Asia	AQI 63	PM2.5 14.2 µg/m³