The 2026 El Niño Will Reshape Global Climate

The entire Pacific is heating up and will arrive in the coming weeks

Recent updates on sea‑surface temperatures in the Tropical Pacific Ocean and international climate projections reinforce the signs that a very intense El Niño is developing in the coming months, according to Meteored Brazil.

With the rapid warming of the tropical Pacific, the consolidation of El Niño is becoming increasingly imminent. The main monitoring region of the phenomenon, known as Niño 3.4, has already shown anomalies of +0.4 °C in the past week. According to the latest update from the U.S. National Oceanic and Atmospheric Administration (NOAA), it is now considered likely that El Niño will occur “soon,” with an 82 % probability of formation between May and July 2026.

The European Union’s Copernicus Climate Change Service highlighted in its latest seasonal report that more than 50 % of the multimodel ensemble members point to a very intense episode, with anomalies exceeding 2.5 °C in the Niño 3.4 region by the end of the forecast period.

Although seasonal forecasts still carry a margin of uncertainty, this probability is regarded as extremely high in the context of El Niño monitoring and is associated with the most intense episodes observed in recent decades.

The precipitation outlook for July, August and September already shows classic El Niño patterns over southeastern South America, with a 60‑70 % chance of above‑average rainfall.

Furthermore, El Niño tends to raise global average temperatures and increase extreme events, such as torrential rains, prolonged droughts, and the intensity and frequency of heat waves.