Home / Prediction Markets / Science / Wuhan May 13 Peak Temp: Market Locks In Twenty-Six Degrees Wuhan May 13 Peak Temp: Market Locks In Twenty-Six Degrees View on Polymarket → Share SR Sofia Renard Climate & Science Analyst Market Resolved Embed NEW Embed this market Full Compact Copy Published May 13, 2026 7 min read Resolution Verdict YES Market Resolved Market has ended. Final implied probability: 100%. Resolved Volume $67.7K $40.1K in 24h Liquidity $1.5M Deep liquidity Time Left Ended Resolves May 13 68K Vol. Ended 1H 6H 1D 1W 1M ALL Select lines to display 26°C $11K Vol. 100% Yes 100¢ No 0¢ 20°C or below $1K Vol. 0% Yes 0¢ No 100¢ 21°C $887 Vol. 0% Yes 0¢ No 100¢ 22°C $1K Vol. 0% Yes 0¢ No 100¢ 23°C $6K Vol. 0% Yes 0¢ No 100¢ 24°C $6K Vol. 0% Yes 0¢ No 100¢ The 26°C outcome for Wuhan’s peak temperature on May 13 is trading at full certainty. The market has already priced this as settled. After opening at 0.22 and climbing in three distinct surges on May 12 and 13, the contract reached 1.00 and stopped moving. Traders are not debating this anymore. What makes this contract interesting is not the current price. It is the speed of the move. A 66.8% gain in 24 hours on a weather measurement market signals that real-world meteorological data arrived and the market responded. Here is what the measurements are telling us: Wuhan’s forecast and observed temperatures for today converged on 26°C, and traders acted on that signal fast. How the Twenty-Six Degree Contract Works This market resolves YES if Wuhan’s highest recorded temperature on May 13, 2026 reaches exactly 26°C. The resolution window closes at 12:00 on May 13. Competing outcomes include every integer from 20°C or below up to 30°C or higher. Only one outcome pays out. YES (26°C): priced at 1.00, implying 100% probability.NO (all other outcomes): priced at 0.00, implying 0% probability. For any alternative outcome to pay, Wuhan’s peak temperature on May 13 would need to land on a different integer entirely. The nearest alternatives, 25°C and 27°C, are both trading at or near zero. The meteorological window is narrow. With the resolution clock at roughly eight hours away as of this writing, a shift of even one degree Celsius would need to occur against already-established observational data. Weather services tracking Wuhan’s daytime high for May 13 have converged on the 26°C reading, leaving no credible path for competing outcomes. Momentum and Market Signals Sponsored Partner The momentum composite here is unusually clean. A trend score of 65.13, a 24-hour price change of +66.8%, and a flat 1-hour change of +0.0% together describe a market that moved hard on new data and then stopped. That is the signature of a resolved information event, not ongoing uncertainty. The driver was almost certainly a combination of May 12 and May 13 temperature observations aligning with the 26°C outcome, triggering successive bets from traders who read the same meteorological data. Total volume stands at $65,007 with $50,360 of that arriving in the last 24 hours. Liquidity sits at $25,999. Volume below $1 million means this market can move sharply on a single new data point, but with the price already at 1.00, there is nowhere left to move upward. The data doesn’t care about the politics, and in this case, it does not care about the remaining hours either. The market has already called it. Wuhan meteorological observations for May 13 showed a peak temperature reading consistent with 26°C, triggering the price surge that began on May 12.The 24-hour volume of $50,360 represents roughly 77% of total contract volume arriving in a single day, confirming concentrated late-stage conviction.The 1-hour change of +0.0% confirms the market has stopped processing new information. Price discovery is complete.The trend score of 65.13, combined with the directional move, points to a one-way signal rather than two-sided debate.All competing outcomes including 25°C, 27°C, and 30°C or higher are priced at zero, removing any ambiguity about trader consensus. Lines Analysis: Wuhan Temperature Data The strongest signal supporting 26°C is the behavior of the market itself. Three separate price surges, up 13% on May 12, up 23% on May 12, and up 32.3% on May 13, track the cadence of intraday weather data releases. Each surge happened when traders with access to Wuhan temperature readings saw the daily high locking in at 26°C. China Meteorological Administration surface station data for Wuhan typically publishes intraday readings, and those readings appear to have landed on 26°C consistently through the observation window. The path for any other outcome to pay is effectively closed. Wuhan’s daytime temperature peak for May 13 would need to revise upward to 27°C or downward to 25°C against already-posted station data. That kind of revision does not happen through the normal reporting process once observations are recorded. The remaining resolution risk is administrative, not meteorological. China Meteorological Administration station data for Wuhan is the primary resolution input. Any correction or restatement before 12:00 on May 13 would be the only scenario capable of repricing this contract.The 30°C or higher outcome and the 20°C or below outcome are both trading at zero, confirming traders see no extreme temperature surprise for today.Regional weather patterns for central China in mid-May typically produce peak temperatures in the 24°C to 28°C range, making 26°C a climatologically normal reading for Wuhan on this date.The resolution timestamp of 12:00 on May 13 is less than eight hours away as of market conditions at 04:10. The observation window is nearly closed. The $65,007 in total volume is modest by prediction market standards. But the directional unanimity is not. Every dollar in this market is now on 26°C. The data favors the YES side completely, and the market is pricing certainty, not uncertainty. LINES VERDICT CONFIRMED: TWENTY-SIX DEGREES Wuhan’s peak temperature on May 13 has converged on 26°C across every available signal. The market moved in three stages as meteorological data arrived, and it has not moved since. What the market says: The 26°C outcome carries 100% implied probability with roughly eight hours remaining before the 2026-05-13 12:00:00 resolution. The market is treating this as already resolved, with no competing outcome holding any measurable probability. Key unknown: The only event that could reprice this contract is a data correction or restatement from China Meteorological Administration station records before the 12:00 resolution window closes. That is an administrative risk, not a meteorological one. Scientific Context Wuhan sits in central China’s Jianghan Plain, a region where May temperatures regularly reach the mid-to-upper 20s Celsius as the summer monsoon system begins its northward advance. The climatological mean daily maximum for Wuhan in mid-May falls in the 25°C to 27°C range, making a 26°C peak entirely consistent with historical normals. No anomalous heat event or cold outbreak is required to explain today’s reading. This is a routine spring temperature in a predictable range. The market is pricing a measurement outcome, not a climate extreme. Frequently Asked Questions What does 100% probability mean here? It means traders have placed all available capital on the 26°C outcome and zero on any alternative. It reflects near-certainty based on observed data, not a guarantee of resolution.What would the NO side need? A competing outcome like 25°C or 27°C would need Wuhan’s recorded daily maximum to land on a different integer. With station data already posted, that requires an official data correction before 12:00 on May 13.What data point could still move this price? A restatement of Wuhan temperature observations by China Meteorological Administration before the resolution window closes is the only remaining data event with any repricing potential.When does this market resolve? The resolution timestamp is 2026-05-13 12:00:00. That is approximately eight hours from the market conditions captured in this analysis.Is the volume reliable? Total volume of $65,007 is below $1 million, which means liquidity is thin and price could theoretically move sharply on a single large trade. In practice, with the price at 1.00, upward movement is impossible and downward movement would require new contradicting data. This analysis reflects market conditions as of 2026-05-13 04:10:25. Prediction market probabilities are volatile and shift as new data and regulatory decisions emerge, especially as the 2026-05-13 12:00:00 resolution date approaches. Lines.com does not accept bets or provide financial or gambling advice. All market outcomes are uncertain. Market Resolved Outcome: YES Final Price 100% Settled May 13, 2026 Duration 2 days Resolution Analysis Data Holds, Market Resolves at Full Payout China Meteorological Administration station data for Wuhan confirms a 26°C daily maximum with no revision before 12:00 on May 13. The contract resolves YES at full payout. All capital on 26°C collects. The three-stage price surge from 0.22 to 1.00 proves prescient and the market closes cleanly. Station Data Correction Drops the Price China Meteorological Administration posts a revised temperature reading for Wuhan before 12:00 on May 13, moving the daily maximum to 25°C or 27°C. The 26°C contract would reprice sharply downward. Thin liquidity below $1 million means even a small correction trade could push the price from 1.00 toward zero quickly. Adjacent Outcome Gains Ground Late If early station data showed 26°C but the true observed maximum lands at 27°C as afternoon temperatures peak, the 27°C outcome gains probability. The resolution window closes at 12:00, so any late-day heat above the morning reading could shift which integer captures the daily maximum before final reporting. Reporting Lag Creates Resolution Ambiguity China Meteorological Administration publishes daily maximums through multiple reporting channels with occasional lags between automated and official records. If the official resolution source and the automated station feed show different values at the 12:00 cutoff, resolution could be contested or delayed, introducing brief but sharp price volatility in an otherwise settled market. Key macro factor: Central China's mid-May temperature regime sits in transition between spring and the onset of the East Asian summer monsoon, producing stable and predictable daytime highs in the 24°C to 28°C range with low day-to-day variance. Market Timeline May 11, 2026, 4:05 AM Market Created May 11, 2026, 4:56 AM Event Start May 11, 2026, 4:59 AM Market Opened May 13, 2026 Market Resolution Related Prediction Markets Moving Now Highest temperature in Beijing on July 22? 28°C 98% Yes No 29°C 2% Yes No Read Article Moving Now Highest temperature in Singapore on July 22? 30°C 99% Yes No 31°C 1% Yes No Read Article Moving Now Highest temperature in Wuhan on July 22? 29°C 98% Yes No 30°C 1% Yes No Read Article Moving Now Highest temperature in Wellington on July 22? 14°C 100% Yes No 9°C or below 0% Yes No Read Article Moving Now Highest temperature in Hong Kong on July 22? 33°C 94% Yes No 34°C 6% Yes No Read Article Moving Now Highest temperature in Tokyo on July 22? 34°C 97% Yes No 35°C 3% Yes No Read Article Moving Now Highest temperature in Shanghai on July 22? 35°C 99% Yes No 36°C 1% Yes No Read Article Moving Now Highest temperature in Madrid on July 22? 39°C 58% Yes No 40°C 41% Yes No Read Article Moving Now Highest temperature in Kuala Lumpur on July 22? 31°C 95% Yes No 32°C 5% Yes No Read Article Loading... 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