Where will 2026 rank among the hottest years on record?
2026 has a real path to being the hottest year on record, but it still needs to beat an exceptionally warm recent benchmark, so I rate the chance as moderate rather than likely. The market price looks somewhat optimistic to me given how much 2026 will depend on the year’s ocean-atmosphere setup.
Analysis
The main reason to consider Yes is the underlying warming trend. Even without a major El Niño, the planet’s baseline temperature has shifted upward enough that recent years are clustering near the top of the record list, and that makes another new high within a short window plausible. Since the market resolves on NASA’s annual land-ocean index, the key question is not whether 2026 will be very warm, but whether it can edge out the current benchmark by enough to take first place or at least tie it. That is possible in a world with persistent long-term warming, but it is not something I would treat as the default outcome this far before year-end data are known.
The strongest argument against Yes is that the bar is already extremely high. Recent years have been extraordinary, and once a year like 2024 sets or matches the record, the next year must clear a very narrow margin. In practice, the hottest-year title is often decided by whether the year gets a strong boost from ENSO and related ocean heat release. If 2026 does not feature a major El Niño-like boost, it is hard to see it overtaking a peak year that already benefited from an unusually warm climate background. That makes the record a moving target, but one that is still difficult to beat in a single annual comparison.
The market price of 70 percent suggests the crowd is leaning heavily on the continued warming trend and the possibility that recent records are part of a new plateau rather than isolated spikes. I think that is directionally right, but maybe too aggressive. A fairer view is that 2026 is among the leading contenders by default because the climate system is warmer than ever, yet the exact ranking remains highly sensitive to conditions later in the year and to whether 2025 ends up setting a very high reference point. My estimate is therefore below the market, with the most likely outcome being that 2026 ends up very close to the top but not quite first.
Arguments
For
- Arguments for Yes: The climate baseline is so elevated that a new annual record remains plausible even without an extreme El Niño.
- Arguments for Yes: If late-2026 ocean conditions turn strongly warm, the year could accumulate enough anomaly to edge past prior records.
Against
- Arguments against Yes: Beating the hottest year ever requires 2026 to exceed an already exceptional benchmark, which is difficult in a single year.
- Arguments against Yes: If ENSO stays neutral or turns cool, the annual average is likely to lag the warmest record years rather than surpass them.
Key drivers
- Persistent long-term warming keeps every recent year close to record territory.
- ENSO conditions in late 2026 could materially boost or suppress the annual average.
Risk factors
- A neutral or cool ocean pattern would make it hard for 2026 to beat a peak year.
- If 2025 or 2024 already stands well above the rest, 2026 may fall short despite being very warm.
Scenarios
Best case
A strong warm-ocean pattern develops in the second half of 2026, global temperatures stay elevated across all seasons, and 2026 finishes fractionally above the previous record or ties it for first place.
Most likely
2026 remains one of the hottest years on record but falls just short of the top spot, landing near the very top of the ranking without clearly surpassing the current record.
Worst case
A cooler-than-expected ocean setup or a pronounced La Niña-style phase keeps 2026 well below the top record, pushing it several ranks down instead of first.
More from this day
- FinancialsKalshi13y
Will OpenAI or Anthropic IPO first?
AI28%MKT92%Edge-64HypedAnthropic currently looks more likely to reach the public markets first, so I put OpenAI first at a fairly low probability. The market’s 89% implied yes price looks too optimistic unless OpenAI’s timetable has recently accelerated behind the scenes.
- pop culturePolymarketEnded
Kai and Speed finish their Minecraft marathon by...?
AI6%MKT62%Edge-56HypedMy read is that a Yes is possible but still unlikely, because the stream has to end cleanly before the deadline and remain ended for 12 hours. With no fresh confirmation that the marathon is wrapping up, the market’s heavy No price looks broadly justified.
- PoliticsKalshi2y
Which agencies will Trump eliminate?
AI84%MKT30%Edge+54Hidden GemUSAID looks much more likely than not to count as eliminated during Trump’s term, because the administration has already dismantled its independent operations and shifted its functions into the State Department. The main uncertainty is whether the market requires formal legal abolition, but even under that standard the path toward Yes remains materially stronger than the current price implies.