MUSC uses the guidelines from Sports Medicine Australia for it's heat policy.
The current Melbourne forecast can be found here.
| Ambient temperature||Relative humidity||Risk of heat illness||Recommended management for sports activities|
| 15–20°C|| || Low||Heat illness can occur in distance running.|
| 21–25°C|| Exceeds 70%|| Low–moderate||Increase vigilance.|
| 26–30°C|| Exceeds 60% || Moderate||Moderate early pre-season training.|
Reduce intensity and duration of play/training.
Take more breaks.
| 31–35°C|| Exceeds 50%|| High–very high||Uncomfortable for most people.|
Limit intensity, take more breaks.
Limit duration to less than 60 min per session.
| 36°C and above|| Exceeds 30%|| Extreme||Very stressful for most people.|
Postpone to a cooler conditions (or cooler part of the day) or cancellation.