Outdoor exercise
Is it safe to run in Tokyo today?
Live AQI and the best running window for Tokyo based on Open-Meteo hourly forecasts.
Running today
Yes — generally safe for outdoor running
Current conditions are good for outdoor running, including longer or higher-intensity sessions. Sensitive groups — young children, older adults, and people with asthma or heart conditions — can generally exercise outdoors as normal, but it is still worth checking the hourly forecast below in case conditions shift later in the day.
Current AQI in Tokyo
53
Fair
Updated 19 Jul 2026, 12:00
Best window to run (next 12h)
13:00 – 14:00 · lowest ~25 AQI
Hourly AQI (next 12 hours)
Now
29
13:00
25
14:00
25
15:00
34
16:00
39
17:00
37
18:00
40
19:00
46
20:00
50
21:00
53
22:00
55
23:00
58
What affects air quality for runners in 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.