Super El Niño Threatens to Disrupt Weather, Agriculture and Global Markets
A strong El Niño event, possibly reaching 'super' status, is forecast to bring a warmer, wetter winter to Argentina's agricultural heartland while raising drought risks in Brazil, with knock-on effects for commodity prices.
The developing El Niño in the equatorial Pacific, which some climate models suggest could intensify into a rare "Super El Niño" by 2027, is already reshaping seasonal outlooks across the Southern Hemisphere. Sea surface temperatures are running well above average, and the phenomenon, which alters global atmospheric circulation, typically brings excessive rainfall to parts of South America while causing drought elsewhere.
In Argentina, the national meteorological service (SMN) has revised its winter trimester forecast (June-August 2026) to reflect an unusually warm and wet season for much of the country, including Buenos Aires and the key agricultural province of Buenos Aires. Temperatures are expected to exceed historical norms, while precipitation is likely to surpass average levels, a pattern meteorologists in Buenos Aires link directly to the nascent El Niño.
The contrast with Brazil is stark. Analysts tracking the 2026/27 soybean crop warn that strong El Niño events historically reduce Brazilian yields by around 9% while boosting US production by over 120% in the short term. With planting underway in the American Midwest, the immediate outlook favours US farmers, but Brazil's soybean belt faces heightened climate risk, potentially tightening global supplies later in the season.
For global commodity markets, the emerging El Niño injects fresh uncertainty. Soybean prices could come under upward pressure if Brazilian output falters, a scenario that traders in Chicago and Shanghai are beginning to price in. Beyond agriculture, scientists caution that exceptionally strong El Niño events can disrupt rainfall patterns as far afield as India and Australia, affecting everything from rice harvests to hydropower generation. As the Southern Hemisphere winter deepens, governments and agribusinesses are watching the Pacific with unease, recalling the devastating impacts of the 2015-16 Super El Niño.
How the same story is told elsewhere.
Argentina's weather service revised its seasonal outlook, predicting a warmer and wetter winter, reflecting an El Niño event with a 60% chance that could reach 80% by spring. In Brazil, the Super El Niño may pressure soybean prices and heighten domestic crop risks, while typically boosting U.S. yields by 123%.
Indian outlets explain the Super El Niño phenomenon, noting a sharp rise in the chance of a strong event by late July, with scientists warning of significant global weather disruption by 2027. Coverage remains measured, focusing on ocean-atmosphere mechanisms and implications for the monsoon.
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