Will there be a Super El Niño this winter (2026–27)?
🗂 Part of event: Will there be a Super El Niño this winter (2026–27)? →💡 What the odds say
The market puts this at about a 96% chance — almost certain.
No money — just record your call and see if you were right. Yes is at 96% right now.
Data from Polymarket’s public API, for informational purposes only. PredictPal is not affiliated with any platform and does not facilitate trading.
Discussion
Loading…
How it resolves
Settled on-chain by UMA's optimistic oracle: once an outcome is clear, anyone can propose the result, which then enters a challenge window where it can be disputed with evidence before it finalizes.
⚖️ A proposed outcome can be disputed during a challenge window before it's final.
Resolution criteria
This market will resolve "Yes" if NOAA's Climate Prediction Center reports a Regional Ocean Niño Index (RONI) value of +2.0°C or higher for any of the following seasons: ASO 2026, SON 2026, OND 2026, NDJ 2026-27, or DJF 2026-27, as reported in official NOAA CPC RONI updates, https://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso/roni/. Otherwise, this market will resolve "No". A Super El Niño is an El Niño event in which RONI reaches this threshold for at least one overlapping ENSO season. An ENSO season is one of NOAA's standard overlapping 3-month periods (e.g., ASO, SON, OND, NDJ, DJF). This market may resolve "Yes" immediately upon NOAA's first publication of a qualifying RONI value for any listed season. If no season has qualified, this market will not resolve "No" until NOAA publishes the DJF 2026-27 value since DJF captures El Niño's typical peak-strength window and an earlier "No" could contradict the final published data. The first published RONI value for each listed season is final and governs this market's resolution; no subsequent revision to any season's value will be considered or will change the outcome once that season's first value has been published.
ⓘ A market settles under its own written rules, which can lag what looks decided in the news — so the price may not move to 100% the moment an outcome seems obvious.
View the official rules on Polymarket ↗Related markets
Apple Announces AI Glasses by September 30, 2026
2 outcomes
Which of these Language Models will beat me at chess?
The field is extremely concentrated on 'any model announced before 2034' at 88%, but the long tail of 22 candidates above 5% suggests bettors see many plausible paths to a 1900-rated human being beaten by a future LLM, with the single biggest recent shift being the 2025-08-15 Business Insider report that OpenAI's o3 swept a chess tournament against xAI's Grok 4, likely boosting confidence in near-term AI chess ability.
52 outcomes
Will Anthropic release its next Mythos-class model to the public by August 31, 2026?
Yes ≈ 46% chance