Summary (tl;dr)

El Niño conditions in the tropical Pacific are rapidly strengthening and are now forecast to develop into a strong or "Super El Niño" event, significantly increasing the global risk of extreme weather phenomena like heatwaves, droughts, and heavy rainfall.

Essential Background

El Niño is a natural climate pattern characterized by the warming of sea surface temperatures in the central and eastern tropical Pacific Ocean. This phenomenon is a key part of the El Niño-Southern Oscillation (ENSO) cycle, which recurs every two to seven years and influences global weather patterns by disrupting normal atmospheric circulation. A "Super El Niño," also known as a "very strong El Niño," specifically occurs when ocean temperatures in the Pacific rise more than 2 degrees Celsius above average.

The Full Story

As of July 2026, El Niño conditions are intensifying in the tropical Pacific. The World Meteorological Organization (WMO) has issued a forecast indicating a rapid development into a strong El Niño event during July–September 2026, with high confidence based on consistent multi-model forecasts. These forecasts predict that seasonal-average sea-surface temperature anomalies in key monitoring regions of the central and eastern equatorial Pacific will exceed 2°C, meeting the criteria for a "Super El Niño." This event is expected to continue strengthening through the Northern Hemisphere autumn and typically reaches its peak intensity between November and February.

Why It Matters

The strengthening El Niño, particularly into a "Super El Niño," carries significant implications for global weather, amplifying the likelihood of extreme events. This includes more intense heatwaves, prolonged droughts, and severe heavy rainfall in different parts of the world, leading to potential impacts such as crop failures, stress on water supplies, disruption to fisheries, and increased risks of wildfires and intense storms. Historically, "very strong" El Niño events have been associated with substantial economic losses and humanitarian challenges. Furthermore, the occurrence of such a strong El Niño amidst ongoing human-caused climate change could exacerbate these impacts, making climate shocks more damaging due to a warmer baseline environment. In response, organizations like the WMO are enhancing coordination and early warning systems to assist governments and vulnerable communities in preparing for potential consequences.

Geographic Location

• Tropical Pacific Ocean (development and strengthening of El Niño conditions)
• Geneva, Switzerland (World Meteorological Organization issuing the forecast for a strong El Niño event)