What is the air quality in Ibaraki?

Ibaraki, Japan has an annual US AQI of 59 (Reasonable) and average PM2.5 of 13.1 µg/m³, ranking #1872 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Ibaraki?

September is typically the cleanest month (AQI 53) and May the most polluted (AQI 67).

Where does Ibaraki's air quality data come from?

PM2.5: 1998–2025 (monitors 2013–2025, satellite 1998–2013, 2017, 2019; 2025 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Ibaraki, Japan — Air Quality & Clean City Guide 2026

Ibaraki Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1872	Ibaraki, Japan	Asia	AQI 59	PM2.5 13.1 µg/m³