Outdoor exercise
Is it safe to run in Mexico City today?
Live AQI and the best running window for Mexico City based on Open-Meteo hourly forecasts.
Running today
Caution — shorten or lighten your run
Conditions are borderline. Healthy adults can usually still run outdoors, but consider shortening the session, easing the pace, or moving to the best window identified below. Anyone with asthma, COPD, heart disease, or who is pregnant should be more cautious and may prefer an indoor session today.
Current AQI in Mexico City
138
Unhealthy for Sensitive Groups
Updated 31 Aug 2026, 15:00
Best window to run (next 12h)
Now – 16:00 · lowest ~78 AQI
Hourly AQI (next 12 hours)
Now
78
16:00
80
17:00
87
18:00
93
19:00
92
20:00
92
21:00
88
22:00
86
23:00
82
00:00
78
01:00
83
02:00
95
What affects air quality for runners in Mexico City
Mexico City sits in a high-altitude basin where surrounding mountains can limit ventilation and concentrate urban emissions. Traffic remains a major pollution source, but basin meteorology and intense sunlight also drive broad ozone formation. As a result, poor-air episodes can affect wide areas beyond obvious roadside hotspots.