What is the air quality in Tokyo?

Tokyo, Japan has an annual US AQI of 61 (Polluted) and average PM2.5 of 14.4 µg/m³, ranking #2232 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Tokyo?

September is typically the cleanest month (AQI 56) and May the most polluted (AQI 63).

Where does Tokyo's air quality data come from?

PM2.5: 1998–2026 (monitors 2010–2026, satellite 1998–2010; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Tokyo, Japan — Air Quality & Clean City Guide 2026

Tokyo Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2232	Tokyo, Japan	Asia	AQI 61	PM2.5 14.4 µg/m³