Climate change and rapid environmental shifts are reshaping how water resources and disaster risks must be managed in Thailand and Southeast Asia. Traditional approaches, once effective under relatively stable conditions, are now insufficient to cope with increasingly frequent and severe floods, droughts, and unpredictable hydrological patterns. Evidence shows declining water availability due to altered rainfall, higher evaporation, and excessive groundwater extraction, leading to subsidence and long-term vulnerability. These challenges demand advanced monitoring technologies and high-resolution data to provide timely insights for sustainable management. Satellite gravimetry, pioneered by the GRACE and GRACE-FO missions, offers a powerful means of tracking mass changes on Earth, particularly groundwater dynamics, by detecting subtle variations in the planet’s gravity field. While widely applied internationally, its use in Thailand and the broader region remains limited due to technical barriers and lack of awareness. Current datasets, typically processed to reduce noise, are constrained by coarse spatial resolution (~300 km), which restricts local-scale applications. Unlocking the full potential of this technology requires new regional processing methods, integration with physical models, and capacity building among local experts. By advancing these capabilities, Thailand can strengthen resilience to climate change, improve water resource governance, and reduce disaster risks, while positioning itself as a regional leader in Earth and Space Technology.