Denise looked stunning in a lemon-coloured raw silk and Chantilly lace gown made for her by Sharon Bowen, and describes the touching ceremony that featured readings by family members and a poem written as a thank-you to guests.
"It was like walking into one of those weddings in an American movie," she said.
She used an appearance on chat show Loose Women, which she co-hosts, to reveal the end of their marriage.
The couple, who have two children, have been married for more than 23 years.
Welch, 53, shocked many TV viewers with her antics on Channel Five's Celebrity Big Brother when she appeared topless after boozing, and tried to pull another contestant's pyjama bottoms down.
Television personality Denise Welch married Lincoln Townley in a private villa on the Algarve, in front of 260 friends and family, calling her wedding day a "fairytale".
"This is about being together forever," said Denise, speaking exclusively to HELLO! This is my fairytale." CLICK ON PHOTO TO ENLARGE "My most brilliant achievement was persuading Denise to marry me," said Lincoln.
"I turned 40 last year and I have never met anyone like Denise, never been close to anyone like her, never loved anyone like I do Denise.
"We have a very unique connection and I wanted to grasp it with both hands. I am proud to call Denise my wife." Stars including Denise’s co-hosts Lisa Maxwell, Shobna Gulati, Carol Mc Giffin, and Andrea Mc Lean attended alongside celebrities including Jill Halfpenny, Ingrid Tarrant, Christopher Biggins and Tricia Penrose.
"Without a doubt I feel and look better without alcohol," said Denise.
To read more about Denise and Lincoln’s wedding, including details of the food served at the reception, the vows that were read out and the moving tributes made by their children, pick up the latest edition of HELLO!
Denise Welch fought back tears today as she revealed on live TV that she has separated from husband Tim Healy.
The actress, who recently won Celebrity Big Brother, confessed they split "some time ago".