On 29 September 2026, the ocean temperature in the El Niño 3.4 region reached 29.85°C, setting a new historical record and surpassing the previous peak recorded in 2015. This temperature, measured by the National Oceanic and Atmospheric Administration (NOAA), suggests potential global economic consequences. The El Niño 3.4 region, covering 2.4 million square miles in the Pacific Ocean, experiences warmer-than-average waters that can disrupt weather patterns and affect economies worldwide. Since 29 September, temperatures have continued to rise, with scientists predicting a peak between November 2026 and January 2027. Ben Kirtman, from the Rosenstiel School of Marine, Atmospheric and Earth Science at the University of Miami, described the situation as a "perfect storm" combining climate change and a rapidly developing super El Niño event. Data from the National Data Buoy Center indicates a 1,600-kilometer band across the Pacific where ocean temperatures range from 28.8°C to 31°C. These changes are altering marine currents, nutrient distribution, and traditional fishing zones. Fisheries are already feeling the impact: commercial fish species are migrating toward cooler waters, making existing fishing quotas and territorial boundaries less effective. In Peru, Ecuador, and Chile, anchovy catches have declined, affecting the fishmeal industry, which relies heavily on these species. In California, fishermen are noticing the arrival of tropical fish species, while local species are moving northward. Doug McCauley, from the Benioff Ocean Initiative at the University of California Santa Barbara, is documenting these shifts. Artisanal fishing communities in the Galápagos and Panama are experiencing income losses, while industrial fishing operations are relocating, leading to new geopolitical tensions over resource access. The disruption of the marine food chain is affecting seabird populations and causing instability in seafood markets. The price of skipjack tuna has risen by 18% since June 2026, reflecting the broader economic ripple effects of these changes. Emerging economies, where fish is a vital source of nutrition and income, are facing both a nutritional crisis and rising inflation. These price increases are also impacting seafood markets in Europe and North America, contributing to broader inflationary pressures. Peter Thomson, from the United Nations, remarked, "The ocean is changing, and these changes affect life and security everywhere." The economic impacts of El Niño 2026 are becoming increasingly visible, particularly in California, where the effects of oceanic changes are translating into tangible economic shocks. El Niño 2026 is reshaping the global maritime economy, challenging existing economic models that rely on oceanic stability. Beyond the record temperature of 29.85°C, it is the underlying economic structures that are under strain. The coming months will determine whether current adaptation strategies are enough to mitigate the effects or if the financial burden of climate change will reach unprecedented levels, requiring a complete rethinking of coastal and maritime economic systems. Scientists and policymakers are closely monitoring the situation, aware that the choices made now may define the resilience of global economies in the years ahead.