Running conditions
Is It Too Hot to Run in Johannesburg Today?
Use the environmental risk signals below to adjust timing, intensity, shade, and recovery.
Forecast conditions
Good
Conditions support this activity with routine precautions.
Heat index
17°C
WBGT est.
11.3°C
UV
0.0
Hourly running conditions
| Time | Temperature | Heat index | Estimated WBGT | UV | Risk |
|---|---|---|---|---|---|
| 07 | 17°C | 17°C | 13.3°C | 0.3 | Low |
| 09 | 20°C | 20°C | 15.1°C | 3.4 | Low |
| 11 | 22°C | 23°C | 16.7°C | 8.4 | Low |
| 13 | 24°C | 23°C | 17.5°C | 8.7 | Low |
| 15 | 25°C | 24°C | 17.8°C | 4.1 | Low |
| 17 | 25°C | 24°C | 17.6°C | 0.5 | Low |
| 08 | 17°C | 17°C | 14.6°C | 1.4 | Low |
| 10 | 21°C | 21°C | 16.4°C | 6.1 | Low |
Three-day forecast
Sunday
Heat index up to 24°C
25°C / 16°C
LowMonday
Heat index up to 24°C
24°C / 13°C
LowTuesday
Heat index up to 24°C
22°C / 13°C
LowKnow when it's safer to run
HeatGuard can notify you as conditions improve and keep this location saved.