Post-monsoon cyclones in the Bay of Bengal are fuelled by warm sea surface temperatures, typically ranging from 28–33°C (82–91°F). Additionally, the monsoon's heavy rainfall and river discharge create a low-salinity layer at the surface, known as a halocline. This halocline acts as an insulating lid, preventing cooler, deeper water from rising and reducing the cyclone's energy. As a result, storms can intensify rapidly and maintain their strength longer than in other basins.