La Niña

Introduction References & Edit History Related Topics

Images

World map illustrating the generalized weather effects of La Nina from December through February. The map highlights regions experiencing wet, dry, cool, or warm conditions, such as wet and cool in southeastern Africa and Australia, dry in equatorial Africa, cool in northern North America and parts of South America, and dry and cool across the central Pacific.

Diagram of the equatorial Pacific Ocean showing El Nino conditions, with weak trade winds, increased rainfall over South America, increased convection, a deepened thermocline, and suppressed upwelling.

La Niña: Media

oceanic phenomenon

Images

World map illustrating the generalized weather effects of La Nina from December through February. The map highlights regions experiencing wet, dry, cool, or warm conditions, such as wet and cool in southeastern Africa and Australia, dry in equatorial Africa, cool in northern North America and parts of South America, and dry and cool across the central Pacific.

La Niña is associated with substantial changes to established weather patterns between December and February

The weather effects of La Niña include increased rainfall in Southeast Asia, northern...

Encyclopædia Britannica, Inc.

Interactives

Diagram of the equatorial Pacific Ocean showing El Nino conditions, with weak trade winds, increased rainfall over South America, increased convection, a deepened thermocline, and suppressed upwelling.

Comparing El Niño, La Niña, and neutral ENSO conditions

Use this interactive diagram to explore how shifts in trade winds and sea surface...

Encyclopædia Britannica, Inc.

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