A severe El Niño event predicted for the 2026-2027 season may significantly alter rainfall patterns across Brazil's primary agricultural regions [1].

This atmospheric shift threatens the stability of the Brazilian economy by risking crop failures in key exports. Because Brazil is a global leader in agricultural production, disruptions to its soy and coffee harvests can trigger price spikes in international markets.

Climatology specialists and CNN Brasil representatives said that the phenomenon can reduce rainfall in some areas while intensifying it in others [1]. This instability creates direct risks for livestock, milk production, and the planting of soy and coffee [1]. A CNN Brasil presenter said that if projections are confirmed, the phenomenon could alter rainfall regimes and affect the formation of the next coffee harvest.

The scale of the predicted event is substantial. Some data suggests the 2026-2027 episode could be among the most intense ever recorded, with an intensity comparable to the events of 1982-83 and 1997-98 [2]. Such extreme shifts often lead to unpredictable harvest yields and operational challenges for farmers.

These climatic pressures are expected to translate into financial instability. Analysts project a potential volatility of five to 10% in the international prices of soy and coffee [1]. This volatility reflects the market's sensitivity to weather-driven supply shocks in South America.

There is some disagreement regarding the immediate onset of these effects. A correspondent for MSN Brasil said that El Niño was not influencing the Brazilian climate in May 2026, but that projections pointed toward changes starting in the following quarter [3]. Conversely, CNN Brasil said that the phenomenon was already approaching and could bring significant changes during that same period [1].

Despite the timing contradictions, experts agree on the broader risk. An author for The Conversation said that El Niño is a widely studied phenomenon that is increasingly associated with climate and environmental impacts across various regions [2].

The 2026-2027 episode could be among the most intense ever recorded.

The potential for a record-breaking El Niño creates a high-risk environment for global food security. Since Brazil's agricultural output is a cornerstone of the global soy and coffee supply chains, any significant drop in production will likely increase costs for consumers worldwide and force producers to adopt more expensive climate-resilient farming techniques.