Various factors affect the color and aroma of white wines, and they include the conditions in the vineyard (climatic conditions, soil, viticultural practices), then the vinification processes procedures and the conditions during the wine storage and aging. The production of white wines implies the fermentation of must, i.e. grape juice without stems and skins. Debit is a white grape variety that produces golden yellow, slightly acidic and balanced wines. It is grown along northern and central Dalmatia, especially near Skradin and the rest of Šibenik's hinterland. The aim of this study was to examine the influence of the year of harvest on the color (polyphenols) and aroma of Debit wine. For this purpose, samples of Debit wine obtained from grapes from the 2022 and 2023 harvest years were taken. The production conditions for both wines were the same: fermentation with the same type of yeast and under the same conditions as regards temperature, fermentation vessel, sulfurization and later aging. The polyphenolic composition and aromatic profile of the wine were determined in the mentioned wine samples. Polyphenolic composition and antioxidant activity were determined using a spectrophotometer, and the determination of the quantitative share of aromatic compounds was carried out using instrumental gas chromatography and solid-phase microextraction (SPME). The results showed that differences in climatic conditions during 2022 and 2023 influenced the basic chemical composition, polyphenolic and aromatic profile of the analyzed wine, even small differences in temperature and amount of precipitation contribute to differences in two wines of the same variety produced by the same vinification procedures.