Guterres Warns World Has Entered 'Danger Zone' of Extreme Weather as El Niño Intensifies

A secretary-general's alarm at the WMO release

On 3 September 2026, as the World Meteorological Organization published its latest El Niño update, UN Secretary-General António Guterres issued a stark assessment: the world has entered a "danger zone of extreme weather" as the phenomenon's impacts begin to be felt globally.

"El Niño is being supersized before our eyes," Guterres said in a press release quoted by BBC News and Al Jazeera. "The science leaves no room for doubt: the planet is in uncharted waters, and those waters are heating up. Sea surface temperatures are rising, temperatures keep climbing, and the world is in the danger zone of extreme weather."

The language was unusually direct for a UN chief commenting on a seasonal climate forecast, reflecting both the near-100% persistence probability assigned by WMO and the visible disruption — droughts, floods, heat — already under way in multiple regions.

What 'uncharted waters' refers to

Guterres's phrasing aligns with WMO data showing the current El Niño developing atop record ocean warmth. Monthly sea surface temperature anomalies in the central Pacific could approach 4°C above average, a threshold that would challenge markers from previous major events including 2015–16.

BBC reporting notes the event could be the strongest in more than 70 years and may last until at least February 2027. UN News reported that forecasters had never before issued such an unequivocal persistence forecast for El Niño or its cooler counterpart, La Niña.

The secretary-general's statement places the natural cycle in the context of human-caused climate change. Impacts are potentially more intense because they unfold in an atmosphere already elevated by greenhouse-gas forcing, leaving less headroom before records fall.

An unusual scale of UN mobilisation

UN News reported that the forecast has prompted an unusual response, including expanded coordination between the World Health Organization and national weather agencies to strengthen forecasts and early-warning systems as risks mount.

WMO Secretary-General Celeste Saulo echoed Guterres's urgency, saying an exceptional El Niño demands exceptional preparedness and response. The WMO Coordination Mechanism is providing tailored expertise to the humanitarian sector, and a core UN team is working with country teams to manage risks while identifying resilience opportunities.

BBC journalists who spoke with governments and scientists found early warning systems strengthened and pre-emptive medical assistance deployed, but serious concern remains for vulnerable groups facing a event that has not yet peaked.

From rhetoric to measurable readiness

Guterres's warning is not itself a policy instrument; its value depends on whether finance ministries, health systems and disaster agencies translate alarm into funded preparedness. The September forecast gives a multi-season horizon that makes such investment more rational than reactive spending after disasters accumulate.

With WMO indicating above-normal temperatures across almost all land areas for September through November 2026, the danger zone Guterres describes is both a rhetorical frame and a near-term meteorological baseline against which governments will be judged.