An Australian sports presenter has apologised after a clip of her slurring her way through a live cross from the Winter Olympics in Italy went viral, with even Australia's prime minister weighing in.

Channel Nine reporter Danika Mason said she had "misjudged the situation" by drinking ahead of her appearance on live television, also blaming the altitude, the cold and her failure to eat dinner.

"I want to take full responsibility, it's not the standard I set myself," she said during another appearance a day later, adding that she was "embarrassed".

Mason had stumbled over her words and talked about iguanas and the price of coffee as she reported on the day's sports events.

"Literally like the price of coffee over here is actually fine, it's more the price of coffee in the US that we're gonna have to get used to. I'm not sure about the iguanas, where are we going with that one?" she said during her cross to the breakfast television show Today on Wednesday, apparently in response to comments from the studio hosts.