An intensifying El Niño event set a new temperature record in a critical area of the Pacific Ocean in September, according to data released on Monday by the European Union’s climate monitoring agency. The development signals the growing strength of the weather pattern, which global meteorologists have been warning for months may become the most powerful El Niño ever recorded.
The Copernicus Climate Change Service reported that sea surface temperatures in the Nino 3.4 region—a key zone for tracking El Niño—reached 29.70 degrees Celsius last month, marking an unprecedented high. This temperature surpasses previous records and comes ahead of the event’s anticipated peak later in 2026.
El Niño is the warm phase of a natural climate cycle characterized by elevated sea surface temperatures in the central and eastern tropical Pacific Ocean. This phenomenon typically disrupts global weather patterns, contributing to increased risks of droughts, floods, and other extreme events across various regions. It also tends to amplify the effects of ongoing anthropogenic climate change.
Forecasters noted that the current El Niño episode’s rapid intensification and record-breaking heat in the Pacific underscore its potential to significantly influence weather worldwide in the coming months. The elevated temperatures recorded in the Nino 3.4 zone serve as a key indicator of the event’s strength, which is closely monitored due to its far-reaching impacts on agriculture, water resources, and disaster preparedness.
Experts are continuing to analyze the evolving El Niño to better understand its potential implications for global weather patterns and climate trends during 2026 and beyond.