What is the air quality in Obihiro?

Obihiro, Japan has an annual US AQI of 49 (Reasonable) and average PM2.5 of 9.5 µg/m³, ranking #672 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Obihiro?

August is typically the cleanest month (AQI 41) and April the most polluted (AQI 56).

Where does Obihiro's air quality data come from?

PM2.5: 1998–2026 (monitors 2016–2026, satellite 1998–2016; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Obihiro, Japan — Air Quality & Clean City Guide 2026

Obihiro Air Quality Data

Global rank	City	Continent	AQI	PM2.5
672	Obihiro, Japan	Asia	AQI 49	PM2.5 9.5 µg/m³