What is the air quality in Hikone?

Hikone, Japan has an annual US AQI of 58 (Reasonable) and average PM2.5 of 12.6 µg/m³, ranking #1725 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Hikone?

December is typically the cleanest month (AQI 51) and May the most polluted (AQI 72).

Where does Hikone's air quality data come from?

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

Hikone, Japan — Air Quality & Clean City Guide 2026

Hikone Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1725	Hikone, Japan	Asia	AQI 58	PM2.5 12.6 µg/m³