Where will 2026 rank among the hottest years on record?

The core question is not whether 2026 will be very warm, but whether it will surpass every other year in the historical NASA land-ocean temperature record. That is a much stricter bar. By September 2026, most of the year has already passed, so the outcome is increasingly determined by the accumulated temperature anomaly pattern across the first nine months and whether the remaining months deliver an unusually strong late-year spike. In practice, the annual ranking is usually driven by the combination of the first half of the year and any major ocean-atmosphere regime, and 2026 would need an exceptional sequence of months to dislodge the most recent record-setting years.

Arguments for Yes are centered on the new baseline set by the past several years. Global temperatures have been running at historically elevated levels, and recent years have repeatedly challenged or broken records. If 2026 has maintained persistent warmth without a substantial cool-down phase, it could still remain in contention, especially if the latter part of the year is boosted by an emerging El Niño-like pattern or simply by the inertia of a very warm climate system. Because the difference between the first- and second-hottest years can be small, a modest advantage in a few months could matter if rival years were only narrowly ahead.

Arguments against Yes are stronger. To finish first, 2026 must beat not just the long-term trend but also the recent extraordinary peaks that are already on the board. The market is asking about the entire year, and by this point a large fraction of the annual anomaly is already baked in; a late-year warm spell can help, but it is harder to erase a deficit than to build one. If 2026 has been influenced by neutral or cooling Pacific conditions, or if the year simply averages back a bit from the extreme conditions seen in the previous record-breaking years, then it is much more plausible that 2026 lands in the top few rather than at number one.

The market price of 73% for Yes suggests traders believe the recent warming trend and the possibility of another exceptionally hot year will dominate. I think that is too aggressive for a single-year rank outcome. The more balanced interpretation is that 2026 is highly likely to be near the top of the list, but only a minority of scenarios leave it as the outright hottest year. The base-rate problem matters here: in a world where record warmth has already been established, being one of the warmest years is common, but being the warmest of all is still a narrower outcome that requires timing, persistence, and favorable climate variability all to line up.