Climate change could advance bud break and flowering, shortening the growing season by 20-35 days after 2060 under RCP8.5  and shifting maturation under high summer temperatures, thus affecting grape quality. Higher temperatures may increase evapotranspiration and therefore water deficit . Some locations may suffer from high winter temperatures, causing a lack of chilling accumulation and ultimately missed bud break . Early maturation may result in unbalanced wine quality through higher sugar and lower acids in the grape must after 2050 under RCP8.5 . Negative impacts of climate change on table quality vines and wine grape production in Southern Europe after 2040 under RCP8.5 have been projected .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report