This comes just a year after the Bordeaux region suffered one of its worst harvests in history with a fall of 39% on year due to late frosts, which lead to a jump in prices.

The hail first hit the south of the region on Saturday at midday, affecting the Pessac-Léognan region and the south of Médoc, home to some of the region’s most famous chateaux, Bernard Farges, head of Bordeaux producers’ union CIVB, said.

It then devastated vineyards of Bourg and Cotes de Blaye on the right bank of the Gironde River and, further east, in Gensac and Pessac-sur-Dordogne.

The vineyard of Cognac was also hit by hail. Officials mention an initial figure of 10,000 hectares affected out of a total 70,000 hectares. They had also been affected by frosts last year.

“The figures…which will have to be refined, show that between 500 and more than 1,000 wine growers have been affected with a area hit of 1,000 hectares in the Médoc, between 4,000 and 5,000 hectares for Blaye and Bourg, and about 1,000 hectares in the vicinity of Gensac”, Farges said.

Some winemakers lost 100% of their harvest, he said.

There are 112,000 hectares of vines in the entire Bordeaux region, the second-largest wine producing region in France after Languedoc-Roussillon.

Last year France’s total production had fallen to a record low due to a series of poor weather incidents including spring frosts, drought and storms that affected most of the main growing regions including Bordeaux and Champagne.

Bordeaux wine prices rose 16% in the first six months of the 2017/18 season, farm ministry data released in March showed.