The Warrnambool export won the 2015 Nedbank Challenge in scorching hot Sun City, South Africa, as well as the US Tour's Travelers Championship in a humid Connecticut in June, 2012.

"Most of my good performances have been in super hot conditions,” he said ahead of the Bellerive Country Club event.

“At the Nedbank it was roasting and the Travellers, when I won, when was over 100 Fahrenheit (38C) every day and humid.

"I love playing in the heat because it makes the body loose.

"You just have to prepare for it; hydrate the night before and the morning of each round."

This is the last year the PGA Championship will be held at the peak of American summer, with the PGA of America moving the event to May from 2019.

Australian former world No.1 Adam Scott says he won't miss playing a major championship in August in the US.

"Yep, it's going to be a long week; you'll have to pace yourself with long rounds Thursday and Friday, but we've done it before, so I'm hopefully fit enough to get around," he said.

Jason Day, Cameron Smith and Craig Hocknull, who was one of 20 club pros to qualify through the recent PGA Professionals Championship, are the only Australians in the field. The five-player Australian contingent the smallest representation since the 1992 PGA Championship which, ironically, was held at Bellerive.