The controversial presenter, who was originally diagnosed with kidney cancer in 2000, said last year the disease had spread to his spine, brain and lungs.
Speaking at the Curry Awards, Whale said his cancer had continued to progress: "I know a lot of you won’t like me, but this time next year I won’t be here. I have terminal cancer."
Whale went on to discuss how the disease affected him: "As you might be able to hear, I am having chemotherapy which makes it harder for me to breathe, but I’m OK. Don’t worry. I am in my 70s now and I just want to say don’t waste your time on stupid things that don’t matter."
Watch: A Place In The Sun presenter Jonnie Irwin explains why he kept cancer diagnosis secret
Whale recently praised A Place in the Sun presenter Jonnie Irwin who publicly revealed he had untreatable cancer: "I found it very difficult to talk about mine because I didn’t want people to think I was using it to get sympathy or for any other reason."
In his Express column, he added: "But along with a number of other people in the public eye, I am at stage four. There is no stage five. I don’t want sympathy; I’ve had a good life but I do find talking about it helps me and although that might sound selfish, hopefully it helps others too."
Whale also lost his first wife Melinda to lung cancer in 2018 though the 71-year-old has since remarried.
His broadcasting career began in the 1970's when he became the store DJ for Topshop on Oxford Street. He later moved to BBC Radio Derby working alongside Terry Christian for a morning phone-in.
Whale is best known for his long run at Talksport where he was sacked after twice urging listeners to vote for Boris Johnson for Mayor of London in 2008.