This thesis investigates the long-term thermal and hydrological dynamics of five alpine springs-Cheserod, Entrebin, Gabiet, Promiod, and Promise-located in the Aosta Valley (Northwestern Italy) over a 14-year period (2010–2024). Using high resolution hourly data, the study analyses water temperature, water level, and conductivity to identify trends, seasonal behaviors, and interspring relationships in response to climatic drivers. The time series were first cleaned using Kalman filtering and interpolation techniques, followed by sinusoidal modeling with linear trends. Results reveal that most springs exhibit a subtle but consistent warming trend in water temperature, with varying rates of increase. In contrast, water level trends are more heterogeneous, with some springs showing slight declines.