What is the air quality in Hōfu?

Hōfu, Japan has an annual US AQI of 61 (Polluted) and average PM2.5 of 14.1 µg/m³, ranking #2204 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Hōfu?

December is typically the cleanest month (AQI 54) and May the most polluted (AQI 77).

Where does Hōfu'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.

Hōfu, Japan — Air Quality & Clean City Guide 2026

Hōfu Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2204	Hōfu, Japan	Asia	AQI 61	PM2.5 14.1 µg/m³