A recent analysis of water inflows to Moroccan dams reveals that 97% of the total annual volume is generated in just four months, typically from December to March. This seasonal concentration underscores the country's reliance on winter rainfall for its water reserves.
The data, verified by hydrological reports from the Ministry of Equipment and Water, indicates that the remaining eight months contribute only 3% of inflows. This pattern is consistent with Morocco's Mediterranean climate, where most precipitation occurs in winter.
As of April 2026, dam filling rates stand at 33.6%, according to official figures. The concentration of inflows in a short period poses challenges for water management, especially during dry years.