Heatwave...

I've been in Melbourne for a week-- just long enough to fully experience the heatwave that's gripped Southeastern Australia.

While it does get this hot in Doha, the difference is that Doha is not an 'outdoors' culture. You certainly don't walk anywhere, and you go indoors for the summer. Everything is air conditioned, and carparks are either covered or underground. Here, though, walking is a popular form of transportation. Even if you did take public transportation, there have been a large number of train cancellations and reports of people getting sick on the overpacked trams, which aren't air conditioned.

http://news.bbc.co.uk/2/hi/asia-pacific/7860776.stm
http://www.theage.com.au/national/state-melts-down-in-heatwave-20090130-7u10.html
http://www.theage.com.au/photogallery/2009/01/30/1232818733640.html