The climate of the Republic of Moldova is moderately continental - short and mild winter with little snow, long hot summer and small amounts of precipitation, which fall in the warm season of the year in the form of short-term rain showers. At the same time as the positive parts of the climate - the long, warm period of the year, the mild winter, the abundance of the sun and the heat - there are also negative moments: drought time and great weather variability. But in recent decades, as a result of climate change, the sum of annual active temperatures higher than 0° C has increased considerably, from the average of 3500° C in the 80s and 3900° C in the 90s to the average of 4300° C in the years 2000-2018. This increase in average annual temperatures has a major impact on local viticulture and winemaking. What is characterized by a greater accumulation of sugars in grapes and reaching the stage of earlier maturation. Meanwhile changing the start of harvesting season from early-mid September to second half of August. Therefore these factors influence the biochemical processes that take place in grapes and therefore affect the quality of the finished product, being more critical for the raw material wines for sparkling wines production in which it is recommended to have an alcoholic degree that does not exceed 11.5-12.0% of alcohol. It was studied the quality of raw material wines produced at Public Institution Scientific and Practical Institute of Horticulture and Food Technologies from central part of R. Moldova between 2010-2018. And was established dynamic of base quality parameters of wines produce from classic European varieties, harvested on optimal sugar accumulation, correlated to the sum of annual active temperatures.