Sir Guy, 65, who officially opened the 51st annual international Lions Clubs convention in Hobart, seized the opportunity to promote Tasmania as a destination.
"Might I also take this opportunity of telling our visitors that the conditions which greeted you outside this convention centre this afternoon, the sunshine sparkling on the water, the bright-blue sky, the crystal-clear air and the soft luminescent landscape, is an entirely unremarkable and ordinary autumn day in Tasmania," Sir Guy told the 1500 amused delegates.
"What you've seen in the presentation I think certainly confirms that Tasmania is one of the most attractive places on earth. But Tasmania is not just a pretty face - Tasmania has a vibrantly creative culture ... with a sophisticated intellectual base."
Sir Guy's comments are typical of the former Chief Justice of the Tasmanian Supreme Court, who has earned a reputation as a highly intelligent and graceful yet down- to-earth man who takes every opportunity to lift Tasmania's profile in the international community.
Both Premier Jim Bacon and Opposition Leader Rene Hidding have praised Sir Guy's elevation to the Administrator's role.
Mr Bacon said the State Government would cooperate with whatever arrangements were necessary.
Lt-Governor William Cox will step in for Sir Guy as Governor.
"Sir Guy has acted as Governor-General before and I'm sure he will do an excellent job," Mr Bacon said.
Mr Hidding said that Sir Guy and Lady Green had carried out their duties in Tasmania with extraordinary distinction, quite likely setting a new benchmark for state governors in Australia.
"His consistent and passionate approach to adding value to the State's economic and social wellbeing has earned him a special place in Tasmanian history. I can think of no one more suitable to step into the role of Governor-General," Mr Hidding said.
The Prime Minister's office, Government House in Canberra and Tasmania's Government House were yesterday tight-lipped about vice-regal arrangements following the standing-aside of Governor-General Peter Hollingworth.
However, it is understood that an announcement about the procedure will be made today.
It has not yet been confirmed when Sir Guy and Lady Green will leave Tasmania for Canberra to be officially sworn in to assume the administration of the Commonwealth Government.
No details have been provided about the length of Sir Guy's tenure, which is a complex matter because Sir Guy's eight-year governorship of Tasmania ends in October.
However, it is understood that Sir Guy will not receive a pay rise as a result of his new appointment. He will continue to receive an annual salary of $183,000, plus a chauffeur-driven limousine.
Sir Guy's role as Administrator caps off a distinguished career spanning the legal, philosophical, academic and vice-regal fields.
Guy Stephen Montague Green was born in Launceston on July 26, 1937, to Monty Green - the editor of the Saturday Evening Express - and his wife Beryl.
Educated at Launceston Church Grammar School and the University of Tasmania, he worked as a lawyer before being made a magistrate in 1971. Only two years later, he was appointed Chief Justice of the Supreme Court when he was only 36.
He was lieutenant- governor from 1982 to 1995.
Sir Guy was elevated to the position of Governor in 1995, and he and his wife Rosslyn are today involved in countless community groups and charities.
The couple have four adult children and nine grandchildren. Two of the adult children were Aboriginal boys - David and Christopher - whom the Greens adopted as babies in the 1970s.