Historian Peter Stead told the BBC in 2016 that he believed Beaujolais Day “fitted the Swansea zeitgeist”.
“This was a community trying to find its feet as a city – looking to gentrify and intellectualise itself – and Beaujolais Day seemed to capture perfectly the spirit,” said Mr Stead.
The city’s No Sign Wine Bar, which was run by former Wales international Clem Thomas, was one of the first bars to hold a Beaujolais Day event in the 1980s.
Mr Thomas’ son, Chris, said his dad would be “thrilled to bits” to see the event still drawing big crowds.
“In a city like Swansea, it’s great to see it’s still such an important social calendar,” he added.
“It was pivotal day for the November takings, it was a great excuse to liven up a dreary Thursday in November.
“Back then we would be taking around £5,000 a week – but takings on Beaujolais could range from £12,000 to £15,000 for that single day.”