Equatorial countercurrent
The equatorial countercurrent is a warm ocean current in the Pacific (about 5 degrees north of the equator ) and in the Indian Ocean (0 to 10 degrees south).
It is an eastward-flowing branch of the tropical currents, in which parts of the water masses of the north and south equatorial currents transported west flow back. It is mainly based on an evasive movement towards the westward moving trade winds .
In the Pacific, the equatorial countercurrent is found year-round, in the Indian Ocean only in the summer months (May to October). In the Atlantic there is also a year-round countercurrent, the Guinea Current .