Outdoor exercise
Is it safe to run in Johannesburg today?
Live AQI and the best running window for Johannesburg 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 Johannesburg
75
Fair
Updated 4 Sept 2026, 10:00
Best window to run (next 12h)
20:00 – 21:00 · lowest ~57 AQI
Hourly AQI (next 12 hours)
Now
83
11:00
77
12:00
75
13:00
73
14:00
71
15:00
69
16:00
71
17:00
73
18:00
68
19:00
66
20:00
62
21:00
57
What affects air quality for runners in Johannesburg
Johannesburg sits on the Highveld, where altitude and regional industrial activity combine with urban emissions to shape air quality. Traffic corridors and dense commercial zones contribute daily nitrogen dioxide peaks, while fine particles reflect both local and regional sources. Neighborhood exposure can differ meaningfully across the metro.