The variable nature of the summer monsoon season makes Southern Asia one of the most vulnerable regions to natural disasters associated with climate change, such as droughts and floods. A recent study has revealed that the warming of the Indian Ocean is reducing the intensity of the summer monsoon season and drying up the subcontinent. In a region that is home to a large part of the world’s population, dynamic climate modelling represents a major challenge in the prevention of the human and economic consequences of climatic hazards.