Australian Open roof closed Roger Federer v Marin Cilic, why wasn't it left open, Wet Globe Bulb Temperature explained, weather
![Australian Open 2020: Cooler temperatures, clear skies allow officials to begin Thursday's qualification matches on time-Sports News , Firstpost Australian Open 2020: Cooler temperatures, clear skies allow officials to begin Thursday's qualification matches on time-Sports News , Firstpost](https://images.firstpost.com/wp-content/uploads/2020/01/AP20014278631817_opt.jpg?impolicy=website&width=1200&height=800)
Australian Open 2020: Cooler temperatures, clear skies allow officials to begin Thursday's qualification matches on time-Sports News , Firstpost
![A temperature gauge registers over 110 degrees Fahrenheit (43 degrees Celsius) at the Australian Open tennis tournament in Melbourne January 16, 2007. REUTERS/David Gray (AUSTRALIA Stock Photo - Alamy A temperature gauge registers over 110 degrees Fahrenheit (43 degrees Celsius) at the Australian Open tennis tournament in Melbourne January 16, 2007. REUTERS/David Gray (AUSTRALIA Stock Photo - Alamy](https://c8.alamy.com/comp/2D2EJ98/a-temperature-gauge-registers-over-110-degrees-fahrenheit-43-degrees-celsius-at-the-australian-open-tennis-tournament-in-melbourne-january-16-2007-reutersdavid-gray-australia-2D2EJ98.jpg)
A temperature gauge registers over 110 degrees Fahrenheit (43 degrees Celsius) at the Australian Open tennis tournament in Melbourne January 16, 2007. REUTERS/David Gray (AUSTRALIA Stock Photo - Alamy
![2019 Australian Open: Fans, players to endure hot start as new heat stress scale is introduced | AccuWeather 2019 Australian Open: Fans, players to endure hot start as new heat stress scale is introduced | AccuWeather](https://cms.accuweather.com/wp-content/uploads/2019/01/open-jan-11-2.jpg)
2019 Australian Open: Fans, players to endure hot start as new heat stress scale is introduced | AccuWeather
![An Australian Open match was (foolishly) played in 156-degree temperatures yesterday | This is the Loop | Golf Digest An Australian Open match was (foolishly) played in 156-degree temperatures yesterday | This is the Loop | Golf Digest](https://www.golfdigest.com/content/dam/images/golfdigest/fullset/2018/01/18/5a60c6888d7ac81b1a2ca12a_GettyImages-906378550.jpg)
An Australian Open match was (foolishly) played in 156-degree temperatures yesterday | This is the Loop | Golf Digest
![Extreme heat policy in place at Australian Open | 16 January, 2014 | All News | News and Features | News and Events | Tennis Australia Extreme heat policy in place at Australian Open | 16 January, 2014 | All News | News and Features | News and Events | Tennis Australia](https://www.tennis.com.au/wp-content/uploads/2014/01/Heat.jpg)
Extreme heat policy in place at Australian Open | 16 January, 2014 | All News | News and Features | News and Events | Tennis Australia
![An Australian Open match was (foolishly) played in 156-degree temperatures yesterday | This is the Loop | Golf Digest An Australian Open match was (foolishly) played in 156-degree temperatures yesterday | This is the Loop | Golf Digest](https://golfdigest.sports.sndimg.com/content/dam/images/golfdigest/fullset/2018/01/18/5a60c654d7325b4eeff2a852_GettyImages-906277434.jpg.rend.hgtvcom.1280.853.suffix/1573234301140.jpeg)