The appearance will mark the second time in less than a week that the suddenly resurgent 83-year-old has made a public appearance, after staying out of view, except in occasional photographs and videos, since undergoing emergency intestinal surgery in July 2006.
Last Wednesday, he made a visit to a Havana scientific centre that was disclosed in a blog on Saturday.
Castro writes opinion columns, or “Reflections”, for Cuba’s state-run media that in recent weeks have focussed on his prediction that nuclear war will soon break out, sparked by a conflict between the United States and Iran over international sanctions against Iran’s nuclear activities.
US error
“The empire is at the point of committing a terrible error that nobody can stop. It advances inexorably toward a sinister fate,” he wrote on July 5. The “empire” is how Castro usually refers to the US, his bitter foe from the time he took power in Cuba in a 1959 revolution.
On Sunday, Castro wrote the “principal purpose” of his writings has been to “warn international public opinion of what was occurring.” His columns have attracted little attention internationally and caused little reaction in Cuba.