City comparison
Tokyo vs Osaka air quality
Live AQI comparison between Tokyo and Osaka. Data updates every 15 minutes.
Tokyo and Osaka differ by 25 AQI points right now. Tokyo has cleaner air at this moment.
What drives air quality in Tokyo and Osaka
Tokyo
Tokyo generally maintains moderate air quality for a megacity, but exposure still varies around major highways, dense rail hubs, and industrial bayside areas. Nitrogen dioxide remains a roadside concern during commuting peaks. Urban heat and building density can shape local dispersion, creating noticeable differences between districts and waterfront zones.
Osaka
Osaka's basin geography and dense urban traffic create predictable rush-hour nitrogen dioxide peaks, while fine particles rise during calm winter spells. Regional Asian dust events in spring can push PM10 and PM2.5 upward across Kansai.
Both cities are shaped by different combinations of traffic density, terrain, weather patterns, and seasonal events, which is why the same AQI band can feel different on the ground. Checking live readings rather than relying on reputation or past visits is the most reliable way to plan travel, exercise, or outdoor time between the two.
Live AQI from Open-Meteo (CAMS). Conditions change hourly — refresh for the latest readings. South African cities may show WAQI station data on their dedicated pages.