El Niño Reaches Record Levels, Global Heat Risks Rise
El Niño Reaches Record Levels, Global Heat Risks Rise
NG · Published Sep 23, 2026
• The El Niño phenomenon has reached record-breaking levels, with sea surface temperatures in the tropical Pacific exceeding 3°C (5.4°F) above average as of mid-September
• The World Meteorological Organization (WMO) predicts the event will peak by the end of the year, potentially becoming the strongest El Niño on record. This natural climate pattern is amplifying global temperatures already heightened by climate change, with severe impacts expected worldwide. A study by Climate Impact Lab estimates that 451,000 heat-related deaths could occur between September 2026 and February 2027, with the Global South bearing the brunt of the crisis. Countries like Nigeria, Sudan, and Indonesia are projected to experience the highest mortality rates due to extreme heat, while California has declared a state of emergency to prepare for potential severe weather.

Impact & Risks

The impacts of this El Niño event are expected to be severe, with heat-related deaths concentrated in vulnerable regions such as the Sahel in Africa, Southeast Asia, and parts of South America. Poorer regions are particularly at risk due to limited resources for heat adaptation. In addition to heat-related mortality, the phenomenon is likely to exacerbate droughts, wildfires, and floods, further straining affected communities. California has already declared a state of emergency to mobilize resources and prepare for potential storms and flooding. The event's global reach underscores the urgent need for adaptive measures to mitigate its effects.

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