UN warns 2026‑2027 El Niño will intensify heat worldwide

El Niño World Meteorological Organization Antonio Guterres global heatwave

The World Meteorological Organization (WMO) says the El Niño phenomenon will strengthen between August and October 2026, with sea‑surface temperatures about 2.9 °C above the seasonal average. The agency projects above‑normal temperatures across most land areas and heightened risk of heatwaves, droughts, floods and wildfires.

U.N. Secretary‑General António Guterres called the event a “warm‑up act” that adds fuel to a planet already on fire and urged an immediate halt to new coal, oil and gas projects. He stressed that governments must act on four fronts: protect people from extreme heat, make work conditions safe, adapt buildings for hotter climates and stop expanding fossil‑fuel use.

Regional impacts are already being prepared for. Argentina’s Servicio Meteorológico Nacional expects heavy rain and flooding in the Litoral, Pampeana and several provinces, while the provincial governments of Santa Fe and Formosa have launched coordinated meetings and inter‑ministerial plans to mitigate water‑related hazards. The Caribbean Climate Outlook Forum warned of recurrent heatwaves, drought and flash‑flood risk across the Lesser Antilles and Guianas. In Brazil, health officials say El Niño‑driven climate changes raise dengue risk. Peru’s coastal cities are experiencing winter heatwaves 7‑8 °C above normal. Allianz Research warns that the strong 2026‑2027 El Niño could push food inflation in Asia and create broader economic disruptions.

Entities

Allianz Research · Andean highlands · Antonio Guterres · Argentina · Argentina National Meteorological Service · Argentina National Meteorological Service (SMN) · Brazil · Caribbean Climate Outlook Forum · Colombia · Colombia Institute of Hydrology, Meteorology and Environmental Studies (Ideam) · El Niño · El Niño

Claims

What the coverage asserts, and how many sources carry each claim.

[● 2 SOURCES] The 2026 El Niño could become one of the strongest on record, potentially exceeding the 'super El Niño' threshold. skopje1.mk
[● 7 SOURCES] NOAA estimated a 63 % probability that the 2026 El Niño will be very strong. m.metro-portal.hr · skopje1.mk · jack1065.com · www.igeekphone.com
[● 2 SOURCES] In August, the western United States is expected to experience above‑average temperatures, while the eastern U.S. and parts of Canada may see cooler, wetter weather. skopje1.mk
[● 2 SOURCES] The strong El Niño is expected to bring warmer and drier conditions to much of Europe in autumn and winter 2026/27. skopje1.mk
[○ 1 SOURCE] The World Bank warned that some regions have a greater than 50 % chance of drought in the coming months. m.metro-portal.hr
[○ 1 SOURCE] FAO chief Maximo Torero said the cumulative impact of El Niño could create a very complex situation by year‑end. m.metro-portal.hr
[○ 1 SOURCE] JP Morgan warned that El Niño combined with $100 per barrel oil could raise food prices by up to 1.5 %. m.metro-portal.hr
[● 2 SOURCES] FAO warned that rice yields in vulnerable areas could fall between 20 % and 50 %. m.metro-portal.hr · skopje1.mk
[○ 1 SOURCE] Munich Re warned that the Asia‑Pacific region is likely to suffer most from El Niño, with higher typhoon, heatwave, drought and wildfire risk. phnompenhpost.com
[○ 1 SOURCE] Sri Lanka’s disaster officials urged preparedness for El Niño, citing threats to monsoon rains, crop yields and hydropower generation.
[● 7 SOURCES] UN Secretary‑General António Guterres said El Niño is adding fuel to a planet already on fire. jack1065.com · wixx.com · nuevolaredo.tv · www.globaldiasporanews.com · antiguatribune.com
[○ 1 SOURCE] Ideam reports more than a 95 % chance that El Niño will intensify in the second half of 2026 and continue into early 2027 in Colombia. paragrafo.co