The developing El Niño has surged to a strength unmatched by any previous event, with meteorologists reporting widespread heat, drought and flooding already across several continents.
Unprecedented ocean warming drives early surge
Sea‑surface temperatures in the central Pacific are now well above the 0.5°C threshold that defines an El Niño, according to the World Meteorological Organisation. The anomaly, which typically builds through the Southern Hemisphere summer, has accelerated to a level that scientists describe as "the strongest on record for a developing event".
Satellite imagery shows a swathe of warm water stretching from the dateline to the South American coast, a pattern that mirrors the 1997‑98 episode – the last El Niño to cause major global disruption – but with temperatures that appear even higher.
Heatwaves ripple across Europe and North America
Temperatures in parts of southern Europe have already breached 40 °C, prompting heat‑health alerts in Spain, Italy and Greece. In the United States, the western states are experiencing a prolonged spell of above‑average heat, with the National Weather Service issuing excessive‑heat warnings for California and Nevada.
"The intensity of this El Niño is amplifying the underlying heat trend we are seeing globally," said a climatologist at the European Centre for Medium‑Range Weather Forecasts, speaking to the BBC. The warning comes after a summer that saw record‑breaking warmth in both continents.
Wildfires flare in Africa, floods surge in Asia
In East Africa, the combination of higher temperatures and reduced rainfall has sparked new fire fronts in Kenya's savannahs, adding to a season already scarred by large‑scale blazes. Meanwhile, monsoon‑dependent regions of South and Southeast Asia are grappling with unusually intense rainstorms, with flash‑flood warnings issued in parts of India, Bangladesh and the Philippines.Local officials in Mumbai reported water levels rising faster than during the same period last year, prompting evacuations in low‑lying districts.
Political leaders flag climate risks ahead of UN summit
At the start of Climate Week in New York, prime ministers from Australia and Iceland highlighted the El Niño’s impact on their domestic climate challenges, underscoring the urgency of global coordination ahead of the United Nations General Assembly. Their remarks echoed a broader call from world leaders to integrate short‑term weather extremes into longer‑term climate policy discussions.
"What we are seeing now is a preview of the kind of weather variability that a warmer planet will make more common," the Icelandic prime minister told reporters, according to the Guardian.
What the coming months could bring
Forecasters expect the El Niño to maintain its strength through the Northern Hemisphere winter, a period that usually marks its peak. Models from the Climate Prediction Centre suggest an increased likelihood of above‑average precipitation in the southern United States and parts of South America, while drought‑prone regions of Australia and southern Africa could face prolonged dry spells.
Experts caution that the current event may amplify existing climate stresses, raising the risk of crop failures, water shortages and health emergencies. Agricultural ministries in several countries are already issuing advisories for planting schedules, and health agencies are scaling up heat‑related response plans.
The developing El Niño is now the strongest on record, scientists say.
As the ocean continues to release heat into the atmosphere, the world watches for the next wave of extreme weather that could test the resilience of communities already coping with the cumulative impacts of climate change.
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