Thousands of people have been escaping the heat on Sydney's Bondi Beach
The Australian city of Sydney is experiencing its hottest day on record, with temperatures reaching nearly 46C.
A temperature of 45.8C was recorded at Observatory Hill in the city at 14:55 local time (01:55 GMT).
Some areas in the wider Sydney region were even hotter, with the town of Penrith, to the west, registering a temperature of 46.5C.
In Victoria state, one man has been killed by a bushfire, one of dozens raging across southern Australia.
State police said the body of the man, who has not been identified, was found in a burnt-out vehicle close to Seaton, a small town some 200km (120 miles) east of Melbourne.
He is the first person confirmed to have been killed by this year's fires, though a firefighter died while tackling a blaze in Tasmania earlier last Sunday. Officials have not yet determined how he died.
Firefighters are still battling dozens of wildfires sparked by the intense heat in New South Wales and Victoria.
The small town of Licola in eastern Victoria is reported to have been cut off by a 44,500-hectare fire, as its sole access road is blocked.
Officials said dozens of people had been evacuated but 10 locals were still there.
Rob Gilder, a sheep farmer, said he and two employees had found themselves trapped on their farm and were "in grave danger".
Australia faces wildfires each year as temperatures climb. In February 2009, on what has come to be known as Black Saturday, 173 people were killed in fires in the state of Victoria.
Officials in Sydney have warned people to be ready for the heat, take care, avoid strenuous activity and stay out of the sun.
The heat has damaged wiring to urban railway lines, bringing delays to much of the network - CityRail have warned passengers to carry water with them.
The emergency services has received dozens of calls from people seeking help for heat-related health issues, including dizziness, fainting and vomiting, ABC News reports.
Chief Superintendent Ian Johns said elderly and ill people tended to suffer the most, but warned that "people underestimate the heat and overestimate their ability and that would be particularly so for younger, fitter Australians".
The heatwave across Australia in recent weeks has been so intense that the Bureau of Meteorology has had to add a new shade to its colour-coded temperature chart, so the scale now reaches above 50C.
However, meteorologists have forecast a dramatic change in weather overnight in Sydney, with thunder storms expected to bring a rapid drop in temperatures.
Thank God!
From BBC News