During La Nina events, trade winds are even stronger than usual and push more warm water toward Asia. La Nina brings warmer-than-normal sea-surface temperatures to the southern Pacific Ocean around northern Australia, New Guinea, and the islands of Indonesia. The cooler sea-surface temperatures of La Nina occur in the southern Pacific off the coast of South America. The eastern and central parts of the tropical Pacific become even colder, while the west is warmer and experiences more rainfall.
La Nina causes drought in Peru and Ecuador, heavy floods in Australia, high temperatures in Western Pacific, Indian Ocean, off the Somalian coast and good monsoon rains in India. A La Nina is actually beneficial for the Indian monsoon.