Martin began his career in radio at fifteen, working with pirate radio stations such as Sunshine 101. He spent nine years at Dublin's 98. He currently presents a Saturday morning radio show on Irish radio station Today FM and presents the weather on TV3.
He is a very popular character on Irish television. He has won the Favourite Weather Presenter category at the Walkers Sensations TV Now Awards for three years in a row. In 2007 he was nominated for TV Personality of the Year at the Irish Film and Television Awards however he lost out to Bill O'Herlihy from RTÉ.