What is the air quality in Sasebo?

Sasebo, Japan has an annual US AQI of 61 (Polluted) and average PM2.5 of 14.1 µg/m³, ranking #2207 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Sasebo?

July is typically the cleanest month (AQI 56) and May the most polluted (AQI 74).

Where does Sasebo'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.

Sasebo, Japan — Air Quality & Clean City Guide 2026

Sasebo Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2207	Sasebo, Japan	Asia	AQI 61	PM2.5 14.1 µg/m³