The prospect of a Super El Niño in the second half of 2026 has triggered alarm across Latin America, where energy systems and economies are dangerously exposed. From Washington, the National Oceanic and Atmospheric Administration (NOAA) estimates a 96% probability that the phenomenon will reach historic intensity, with Pacific warming exceeding 2.5°C. For Colombia and Brazil, which rely heavily on hydroelectric power, the risk of severe rationing looms large. Colombian analysts calculate that a one-hour blackout could cost between $175,000 million and $204,000 million, while Brazilian authorities warn that thermoelectric backup will drive electricity bills sharply higher. The memory of the 1982-83 and 1997-98 events — dubbed "Niño Godzilla" by NASA researchers — underscores the potential devastation.

Beyond energy, the health and commercial impacts are mounting. In Indonesia, paediatricians report that prolonged heatwaves are causing dehydration and diarrhoea in children, a pattern that could replicate across tropical Latin America. Mexico faces a split scenario: torrential rains in the south and extreme drought in the north, threatening agriculture and retail logistics. Viewed from Mexico City, retail executives are nonetheless planning geographic expansion, betting on resilience despite regulatory and tariff pressures. Yet in Colombia, the state-intervened energy distributor Air-e has seen its debt balloon from $700,000 million to as much as $3.9 trillion under government administration, compounding the system’s fragility.

Colombia’s fiscal outlook is further strained by a broader economic slowdown: construction, industry, and commerce are contracting even as the government debates balancing social spending with sustainability. A recent forum hosted by the Inter-American Development Bank, titled “Por una Colombia en crecimiento 2026-2045,” brought together energy and construction leaders to propose strategies for the next administration, including boosting firm energy capacity and coal production. The message from Bogotá is that time is running out to shore up reserves and reduce dependency on hydroelectricity before the dry season peaks.

Looking ahead, the confluence of climate risk, debt overhang, and fragile institutions presents a sobering test for the region. While some sectors, like retail in Mexico, express cautious optimism, the energy sector’s vulnerability to a single climatic shock could cascade through economies. The window for preventive action is narrowing; without accelerated investment in thermal backup and transmission upgrades, Latin America may face not just higher utility bills but a full-blown productivity crisis. The coming months will reveal whether governments can translate warnings into policy before the heat turns critical.