The primary factor influencing oceanic currents is the wind. Wind patterns drive surface currents across the ocean, creating a system of circulation that plays a crucial role in global climate regulation. Additionally, the Earth's rotation affects current direction through the Coriolis effect, influencing how water moves in relation to latitude. Other factors include temperature and salinity differences, which create density variations in seawater. Together, these elements determine the movement and interaction of currents, significantly influencing marine ecosystems and weather patterns worldwide.