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2026 May 1st, 2nd, 3rd hottest on record? Odds & Prediction Markets
Will May 2026 be the 2nd hottest on record?
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Intro
This market tracks whether May 2026 will rank among the three hottest months of May in recorded history, based on global temperature measurements. On Polymarket, the leading outcome—that May 2026 becomes the second hottest May on record—stands at 92.0%, while the probability that it ranks third hottest is 4.8%. Resolution will use NASA's Global Land-Ocean Temperature Index data, with the final determination expected by June 10, 2026, when May's complete temperature data becomes available for comparison against all historical May records.
Frequently asked questions
Prediction market odds reflect real-money consensus from traders pricing climate outcomes, while analyst forecasts typically rely on climate models and historical temperature data. Markets incorporate broader information—including seasonal patterns, El Niño conditions, and emerging climate trends—into their odds in real time. Comparing Polymarket odds to published forecasts from meteorological agencies or climate research institutions can reveal where traders see divergence from traditional models, highlighting either market optimism or skepticism about record-breaking May temperatures in 2026.
On Polymarket, this event is priced through outcome contracts reflecting the probability that May 2026 will or will not produce record-breaking temperatures. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The leading outcome currently reflects probability, indicating trader expectations about whether one or more of those three days will rank in the historical temperature record. Prices adjust continuously as new climate data, seasonal forecasts, and trader positions flow into the market, with volume concentrated around the most likely scenarios.
The market resolves on Jun 10, 2026, after May 2026 has concluded and official temperature records become available. Resolution depends on verified data from recognized meteorological authorities comparing actual temperatures on May 1st, 2nd, and 3rd of 2026 against the historical record for those specific dates. The outcome will be determined by whether any of those three days ranks among the hottest ever recorded for that calendar date, based on established climate databases and official measurements.
Key signals include updated seasonal climate forecasts, El Niño or La Niña strength predictions, and real-time atmospheric conditions as May 2026 approaches. Major volcanic eruptions or unexpected solar activity could shift long-term temperature expectations. As spring 2026 unfolds, early April weather patterns and monthly temperature anomalies will provide concrete data that traders use to adjust odds. Breaking climate news, updated IPCC findings, or shifts in global ocean temperatures could also influence market pricing before the resolution date.
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