Outdoor exercise
Is it safe to run in São Paulo today?
Live AQI and the best running window for São Paulo based on Open-Meteo hourly forecasts.
Running today
No — postpone outdoor running
Air quality is unhealthy enough that outdoor running is not recommended right now, even for healthy adults. Move exercise indoors, or wait for the AQI to drop into a safer band using the hourly forecast below. Sensitive groups should avoid prolonged outdoor exertion entirely until conditions improve.
Current AQI in São Paulo
500
Hazardous
Updated 31 Aug 2026, 18:00
Best window to run (next 12h)
01:00 – 02:00 · lowest ~60 AQI
Hourly AQI (next 12 hours)
Now
107
19:00
89
20:00
77
21:00
73
22:00
69
23:00
65
00:00
61
01:00
60
02:00
60
03:00
62
04:00
64
05:00
63
What affects air quality for runners in São Paulo
São Paulo's vast urban footprint and heavy vehicle activity make traffic emissions a persistent driver of local air pollution. Nitrogen dioxide peaks near major avenues and logistics routes, while fine particles can spread more broadly under low-wind conditions. Urban heat and dense development influence how quickly pollutants disperse.