El Niño is here. The climatic phenomenon officially began in June, but in the Southern Cone, particularly in Argentina, it began being felt with more intensity in August with heavy rainfall, floods and temperature changes.

El Niño is expected to peak between October and December and continue throughout the Southern Hemisphere summer, especially affecting the northeast of Argentina, Paraguay and the south of Brazil.

Dubbed “Super Niño,” it is expected to be one of the most intense episodes in four decades, and authorities are preparing for what will come.

The Argentine region currently experiencing the early effects of El Niño with more intensity is the Litoral, particularly in the northeastern provinces of Misiones, Corrientes and Entre Ríos. Those areas are crossed by several rivers.

Throughout the week, hundreds of people were evacuated from their homes in Corrientes, Entre Ríos and Misiones after heavy rainfall caused a marked increase in the inflow of the Uruguay and Paraná rivers, leading to severe flooding. Even cattle had to be evacuated from fields completely covered by water.

INFO> Por las inundaciones en San Javier, Misiones, productores ganaderos deben salvar sus animales. Noten hasta donde llega el agua… #Misiones #SanJavier #RioUruguay #ElNiño pic.twitter.com/ceRmIfkFRM— Juan Ayoroa (@JuaniAyoroaOK) October 14, 2026

INFO> Por las inundaciones en San Javier, Misiones, productores ganaderos deben salvar sus animales. Noten hasta donde llega el agua… #Misiones #SanJavier #RioUruguay #ElNiño pic.twitter.com/ceRmIfkFRM

On Monday, the binational hydroelectric plants Yacyretá (shared between Argentina and Paraguay) and Itaipú (Paraguay and Brazil) opened the gates to their dams to regulate water levels in response to increased river inflows. Yacyretá even suspended tourist visits to the plant for safety reasons.

EFECTO EL NIÑO: ABREN LAS COMPUERTAS DE ITAIPÚ Y YACYRETÁ Y SUSPENDEN LAS VISITAS POR LA CRECIDA DEL PARANÁLas represas de Itaipú y Yacyretá abrieron sus compuertas ante el aumento del caudal de agua en la cuenca del río Paraná, en un contexto marcado por las lluvias intensas… pic.twitter.com/wxSyAob2IN—........

© Buenos Aires Herald