Switzerland’s agriculture is increasingly challenged by changing rainfall and more frequent droughts caused by climate change. Though often seen as water-rich, regional disparities in water availability are growing, especially in the Swiss Plateau and Alpine valleys where farming is vital. Rainfed crops such as wheat, maize, and vineyards are vulnerable, while irrigation is expanding in areas like the Engadin Valley. With rising pressure on water resources, reliable data on crop water demand and soil moisture are urgently needed to sustain production. The ADRIA project addresses this by combining remote sensing, advanced sensors, and machine learning to monitor soil and plant water status from field to regional scales. Results will help to enable early detection of water stress, guiding breeding of drought-tolerant varieties and development of smarter irrigation strategies. Beyond technology, ADRIA supports platforms for sustainable water management and strengthens federal drought warnings with crop-specific risk models. Together, these advances will improve water efficiency, safeguard yields, and build resilience in Swiss agriculture.