Soil erosion has a significant impact on water flow and water regime, and therefore the quantity and quality of water. Many vineyards are located at hillslope locations due to favorable exposure, climatic conditions and pedological characteristics. Field observations (lysimeters, soil sensors) and laboratory analyses (HYPROP) was used to experimentally determine hydraulic parameters of the soil, which represents the first step in determining the water flow and soil water regime. The description and prediction of specific processes in the non-saturated and saturated soil zone can be performed using water flow and transport numerical models (HYDRUS). The aim of using models is to understand water and solute behavior in soils with the purpose of protection against soil and water pollution, and the enhancement of the agricultural production. The aim of this work was to calibrate and validate numerical model of water flow and water regime of the study area using field research and sensor technology. The paper confirms the assumptions about the variability of hydraulic characteristics and water flow depending on the location in the vineyard, with erosion as a major factor in soil spatial heterogeneity. The heterogeneity of soil hydraulic parameters on the hillslope affected by erosion suggests localized application of agrotechnical measures (e.g., irrigation).