Aussie favourite Crown Princess Mary of Denmark has expressed her condolences to Australian families who have lost everything due to the bushfires ravaging the country.

Mary, who was born in Tasmania, said that she was “proud” of her Australian heritage and expressed her “deepest sympathy” to those who had lost their homes.

The 47-year-old wrote the letter of support to Prime Minister Scott Morrison as she has been following the disaster from her home in Denmark.

"In this time of great hardship caused by the ruthless bush fires, my husband [Crown Prince Frederik] and I would like to convey our warmest wishes to the Australian people as we enter a new year," Crown Princess Mary wrote in the letter, released by the Danish royal family.

"Our heartfelt condolences to the families who have lost loved ones and our deepest sympathy to the many families who have lost their homes - their livelihoods.

"When the immediate crisis subsides and people can begin to return from where they have fled, our thoughts and concerns will remain with the affected local communities, as it will undoubtedly take great efforts and time for them to rebuild what has been lost.

"The courage and unyielding efforts of the volunteer firefighters have our deepest respect and admiration.

"Following from afar, it makes me proud of my Australian heritage to witness the strong sense of community and the Australian spirit of 'never giving up' in the face of such devastation and adversity."

Cooler weather and rain has given firefighters a chance to catch their breath as 139 fires continue to burn across the state of NSW. The RFS, according to the ABC have said that at least 60 properties were lost across the state this weekend, but that number is set to rise. RFS volunteers have been pushed to their absolute limits as they try valiantly to stop the bushfires from impacting more families and taking their homes due to the blazes.