The Australian Open has taken proactive measures on Day 7 of the tournament, commencing matches an hour earlier than scheduled across all courts at Melbourne Park. This decision was prompted by forecasts predicting extreme temperatures, leading to the implementation of the tournament's established Extreme Heat Protocol.
Understanding the Extreme Heat Protocol
The protocol operates on a sophisticated scale that evaluates multiple environmental factors to ensure player safety and consistency. Introduced in 2019, the Heat Stress Scale ranges from 1 to 5, incorporating four critical climate elements: air temperature, radiant heat, humidity levels, and wind speed. This comprehensive approach aims to minimise the risk of heat-related illnesses among competitors.
Thresholds and Interventions
When the heat index reaches level 4, tournament organisers can enforce additional cooling breaks. In women's singles matches, a ten-minute break may be introduced between the second and third sets, while men's singles matches may receive a similar break between the third and fourth sets.
Should the index escalate to level 5, automatic suspension of play occurs for both women's and men's singles matches. The tournament referee retains authority to suspend upcoming matches on outdoor courts and may decide to close or keep closed the roof on arena courts if outdoor play has been halted.
Resumption Procedures and Stadium Specifics
The referee determines when play can safely resume, with regulations requiring at least thirty minutes' notice to all players before recommencement. In arena stadiums, specific rules apply regarding cooling breaks; if the roof is closed before the conclusion of the first set in women's singles or before the end of the second set in men's singles, no additional cooling breaks are permitted.
Day 7 Conditions and Spectator Advice
As play began on Day 7, humidity levels registered at approximately 20%, decreasing slightly as temperatures climbed throughout the day. By 1:30 p.m. local time, the heat index had reached level 4, with temperatures approaching 35 degrees Celsius (95 Fahrenheit).
Tournament organisers issued comprehensive advice to spectators, encouraging protective measures including wearing hats, applying sunscreen regularly, and maintaining hydration. Visitors were advised to utilise shaded areas and cooling zones throughout Melbourne Park and to allow additional time for arrival due to the challenging conditions.
The implementation of these measures demonstrates the tournament's commitment to athlete welfare and spectator comfort during periods of extreme weather, balancing competitive integrity with necessary safety precautions.



