Godzilla El Niño Could Hit 4 Degrees Above Normal by Year-End

The World Meteorological Organization confirmed on September 3 that an exceptionally strong El Niño is firmly established and will intensify through February 2027. Ocean temperatures in the tropical Pacific have already exceeded the 2-degree threshold that defines strong El Niño events, with some forecasts predicting temperatures 4 degrees Celsius above the 30-year average by year-end. This rare phenomenon threatens widespread disruption to agriculture, water supplies, and economies worldwide.

Why scientists call it Godzilla El Niño

El Niño occurs when tropical Pacific waters warm significantly, typically every two to seven years. The National Oceanic and Atmospheric Administration (NOAA) officially declares an El Niño when water temperatures exceed 0.5 degrees Celsius above the 30-year average for three months. A strong El Niño requires temperatures 2 degrees above average. The 2023-24 event reached this threshold and contributed to 2024 becoming the warmest year on record since measurements began in 1950. This year’s event has already exceeded 2 degrees in July, with subsurface waters reaching 8 degrees above normal in some areas, prompting meteorologists to adopt the “Godzilla” label for its unprecedented scale.

Record certainty on duration and intensity

The WMO’s latest forecast shows a 100% likelihood that El Niño will continue through February 2027, marking the first time the organization has expressed such certainty in an El Niño update. The phenomenon is expected to peak toward the end of 2026. The WMO warned that El Niño will have “considerable impacts on precipitation and temperature patterns” across the globe. UN Secretary-General António Guterres stated on September 3 that the planet is in “uncharted waters,” emphasizing the need for urgent climate action to protect vulnerable populations.

Expected impacts across regions

The WMO and UN warn of a phenomenon with “super-scale” consequences, including elevated risks for floods, droughts, and extreme heat. Effects vary by region. East Africa faces wetter conditions and higher flood risk, while Southern Africa confronts drought danger. Indonesia is already experiencing an unusually prolonged and intense dry season. Daniela Matei, a climate researcher at the Max Planck Institute, noted that while drought forecasts are precise enough to enable mitigation, extreme weather events like flash floods and typhoons cannot be prevented despite early warning systems, likely resulting in deaths.

Economic and social consequences

WMO Secretary-General Celeste Saulo stated on September 3 that El Niño has “the potential to deal a massive blow to societies and economies worldwide.” The 2023-24 El Niño already disrupted global supply chains and agricultural output. The British Met Office warned in late August of the “most intense” El Niño in over a century. Communities already stressed by climate impacts face compounded risks. In Africa alone, extreme weather and climate events affected at least 13 million people and caused more than 3,000 deaths in 2025, with floods accounting for more than half of reported events.

Final Thoughts

With near-certainty forecasts and unprecedented ocean warming, the developing Godzilla El Niño poses material risks to agricultural yields, insurance claims, and emerging market currencies through early 2027. Investors should monitor commodity prices, water-stressed regions, and climate-exposed sectors closely.

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