Australian Open organizers activated their extreme heat policy on Tuesday as temperatures at Melbourne Park soared. This led to the suspension of play on outer courts and the closure of roofs on the main showcourts.
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Introduced in 2019, the protocol aims to reduce the risk of heat-related illness and ensure consistent conditions for all players. It evaluates air temperature, radiant heat, wind speed, and humidity to assess playability, establishing thresholds for cooling interventions.
On Tuesday, the tournament's "Heat Stress" rating hit the highest threshold of 5.0, with temperatures exceeding 40 degrees Celsius (104 degrees Fahrenheit) by 2 p.m. This level was recorded shortly after world number one Aryna Sabalenka achieved a 6-3, 6-0 victory over teenager Iva Jovic.
"At the end of the match, it was really hot out there," Sabalenka remarked, noting her relief when the roof closed almost halfway through, offering shade.
Southeastern Australia is currently undergoing a significant heat wave, with the Bureau of Meteorology forecasting temperatures in Melbourne could reach as high as 45 degrees Celsius (113 degrees Fahrenheit). These severe to extreme conditions are expected to peak on Tuesday and Wednesday, gradually easing later in the week.
In response to the blistering weather, Australian Open officials highlighted the importance of spectators wearing hats, applying sunscreen, and staying hydrated, while also encouraging them to utilize shaded and cooling areas on site.