The study examines the critical task of improving the monitoring of territorial systems of tourism regarding regional specifics. Existing monitoring systems, based primarily on static and fragmented statistical data, demonstrate significant limitations in capturing the dynamics and qualitative changes in regional tourism development. The study proposes a monitoring approach based on the principles of adaptive regional differentiation. A key element of the concept is the mechanism for adapting the system of tourism development indicators to the regional specifics of tourism systems in a changing environment. The scientific novelty lies in the combined approach to developing indicator weighting coefficients, which combines retrospective statistical analysis with expert assessments for various types of tourism development, differentiated based on a strategic positioning matrix, taking into account unique combinations of economic, social, environmental, infrastructural, and institutional parameters. Monitoring is implemented through a measurement system integrating traditional data sources and the digital footprint of tourism activity, and a calculation system evaluating integrated indicators for key aspects of tourism development. The concept envisages the identification of indicators with anomalous dynamics, signaling potential risks to tourism development. The practical significance lies in defining the principles for constructing a toolkit for making management decisions based on the results of tourism development monitoring.