The Pacific Ocean is to the west of South America ... It runs along the western coast of South America from the very southern tip to the north coastline, near to the Caribbean.

Data: NOAA; Map: Axios Visuals. Note the warm water anomalies along the west coast of South America. While a weak La Niña is taking place in the tropical Pacific Ocean, a unique phenomenon is ...

In an El Niño year, air pressure drops along the coast of South America and over large areas of the central Pacific. The typical low pressure system in the western Pacific becomes a weak high pressure ...