Experts forecast 2026 could become the hottest year on record as Super El Niño builds

By 
, September 21, 2026 
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Global temperatures through the first eight months of 2026 are running well above historical averages, and a rapidly strengthening El Niño in the Pacific threatens to push the year past every prior record, raising hard questions about what governments are actually doing to prepare.

August 2026 tied for the hottest month ever measured on Earth, matching a record first set in July 2023, with an average surface air temperature of 16.82°C (about 62.3°F). That figure, drawn from the Copernicus Climate Change Service, landed 0.85°C above the 1991, 2020 average and edged out July 2026 by a tenth of a degree. Average sea surface temperatures outside polar regions hit 21.07°C (roughly 69.9°F), the hottest reading on record for any August, and tied for the hottest ocean month ever logged.

For the first eight months of the year, global average temperatures sit 1.22°C (2.2°F) above the baseline average, the Daily Mail reported. That already places 2026 among the warmest years in the modern record. And the worst may still be ahead: a Super El Niño is building in the equatorial Pacific, with forecasters warning its peak will not arrive until late December or January.

A Super El Niño on top of already record-breaking heat

El Niño, the periodic warming of Pacific surface waters that disrupts weather patterns worldwide, is not new. But the scale of the current event has drawn sharp attention. The Met Office predicts Pacific warming could reach 3°C (5.4°F) above normal, with some projections as high as 4°C (7.2°F). Scientists quoted in the source material have described the phenomenon as "firmly established" and "being supersized before our eyes," though the specific researchers behind those warnings were not named.

AccuWeather meteorologist Tyler Roys framed the situation bluntly:

"What stands out is how widespread and persistent the warmth has been, from the atmosphere to the oceans."

Roys added that the El Niño is developing on top of an "unusually warm global background," a combination he said "could have significant implications for weather patterns around the world through the fall and winter." He warned the event could reshape jet streams, shift storm tracks, and alter rainfall and temperature patterns across large portions of the globe.

"In many ways, this story is just getting started," Roys said.

Forecasters have issued what was described as an unprecedented warning, an "exceptionally huge likelihood of nearly 100 per cent" that El Niño will cause problems through February. The source of that specific forecast was not identified by name, but the assessment was characterized as "the first time such an unequivocal update has been issued."

Europe shattered its summer record; the U.S. broke a Dust Bowl-era mark

The numbers are not confined to oceans and global averages. Europe recorded its hottest summer on record in 2026, surpassing a benchmark that had stood since 2003. Across the Atlantic, July was officially the hottest month ever recorded in the contiguous United States. The New York Post reported that the average temperature across the lower 48 states hit 76.9°F, roughly 3.3 degrees above the 20th-century average and 0.8 degrees hotter than the previous record set during the Dust Bowl in July 1936. The extreme heat concentrated in the Mountain West, Southwest, Northern Plains, and Southeast.

Katharine Jacobs, a climate scientist at the University of Arizona, told reporters that "extremely high temperatures across the continental US this summer, along with intense drought and fire conditions, are absolutely consistent with the climate change signal." Other scientists have pointed to the danger of overnight heat, noting that when temperatures fail to drop at night, human bodies cannot recover from daytime stress.

Roughly 82 percent of the world's ocean surface experienced marine heat waves in 2026, with daily sea surface temperatures setting records nearly every day since June, Breitbart reported. Climate scientist Zachary Labe of Climate Central noted that while El Niño adds a fraction to overall warming, "the driver of the record warmth is climate change in the background. And it's a much larger, much, much larger, contribution than El Niño."

As of mid-year, 2026 ranked as the third-hottest year on record, behind 2024 and 2025. But the probability of it finishing as the hottest has climbed sharply, from just 7 percent in March to 35 percent by summer, and AccuWeather expects the final months of the year to push temperatures higher still as El Niño's full force arrives.

Where 2026 sits in the record books, and what comes next

The current rankings of the hottest years on record tell their own story. The top five, measured by departure from the average baseline:

  • 2024: +1.29°C (+2.32°F)
  • 2026 (through August): +1.22°C (+2.20°F)
  • 2025: +1.19°C (+2.14°F)
  • 2023: +1.17°C (+2.11°F)
  • 2016: +1.01°C (+1.82°F)

Every one of the top four years on that list has occurred since 2023. The gap between 2016, the only pre-2020 entry, and the rest of the list is widening. And experts warn that 2027 is likely to be even hotter than 2026, because the Super El Niño is expected to peak around the turn of the year and its warming effects carry forward for months afterward.

Britain's environment minister tells citizens to stockpile food

Perhaps the most striking government response came from the United Kingdom. Dame Angela Eagle, the Secretary of State for Environment, Food and Rural Affairs, publicly urged Britons to stockpile food in preparation for extreme weather linked to the Super El Niño. The Met Office has forecast that El Niño will make the UK's autumn and early winter colder, wetter, and stormier than normal.

Eagle told The Guardian:

"If you've got a store of a bit of food that can keep you going for a while before the emergency services can get to you, you're going to be a lot better off than if you haven't."

That a senior cabinet minister in a G7 nation is telling citizens to hoard food because the government may not reach them in time deserves more scrutiny than it has received. The advice implies that existing emergency infrastructure is not adequate for what forecasters say is coming, a conclusion that raises obvious questions about what officials have been doing with the time and money already spent on climate preparedness.

Big forecasts, thin accountability

The data is striking, and the forecasts are alarming. But the pattern that should concern taxpayers and voters is not just the rising thermometer. It is the widening gap between the scale of the warnings and the quality of the government response.

When the best advice a national environment minister can offer is "stock up on canned goods," the question is not whether the planet is warming. The question is what, exactly, the billions spent on climate policy have bought the public in terms of actual resilience. Record after record falls. Forecasters issue ever-more-dramatic warnings. And the official plan, in one of the world's wealthiest nations, is to tell people to fend for themselves until help arrives.

AccuWeather's Roys put it simply: "The impacts of this event could extend well beyond the Pacific in the months ahead." If that is true, and the data so far suggests it is, then citizens deserve more from their leaders than a suggestion to check the pantry.

Governments that spend years demanding sweeping climate authority owe the public more than a shrug and a shopping list when the weather they warned about actually shows up.

About Sadie Smith

From campaign chaos to late-breaking developments, Sadie covers politics with speed and clarity. She focuses on what’s happening right now, how it got there, and why readers should care. The goal is simple: useful political coverage without the lectures.

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