Home / Prediction Markets / Science / Qingdao May 13 High Temp: Will It Stay at 23C or Below? Qingdao May 13 High Temp: Will It Stay at 23C or Below? View on Polymarket → Share SR Sofia Renard Climate & Science Analyst Market Resolved Embed NEW Embed this market Full Compact Copy Published May 12, 2026 6 min read Resolution Verdict YES Market Resolved Market has ended. Final implied probability: 100%. Resolved Volume $29.4K $22.7K in 24h Liquidity $2.8M Deep liquidity Time Left Ended Resolves May 13 29K Vol. Ended 1H 6H 1D 1W 1M ALL Select lines to display 23°C or below $12K Vol. 100% Yes 100¢ No 0¢ 24°C $3K Vol. 0% Yes 0¢ No 100¢ 25°C $2K Vol. 0% Yes 0¢ No 100¢ 26°C $2K Vol. 0% Yes 0¢ No 100¢ 27°C $2K Vol. 0% Yes 0¢ No 100¢ 28°C $2K Vol. 0% Yes 0¢ No 100¢ Qingdao’s forecast for May 13 has moved fast. The contract tracking whether the city’s daily high stays at 23°C or below surged 57% in a single hour and sits at 80.4% probability heading into resolution. That kind of momentum in a weather market means traders have found a signal they trust. The question is whether the meteorological data backs it up. Here’s what the measurements are telling us. Qingdao sits on China’s eastern Shandong Peninsula, where late spring temperatures are shaped by maritime air off the Yellow Sea. May highs in the city typically cluster in the low-to-mid twenties. A cap at 23°C is not an extreme ask for mid-May. The market is pricing that reality, and the composite momentum signal confirms traders have largely reached a consensus. How the Contract Resolves on May 13 This contract resolves based on Qingdao’s official recorded high temperature on May 13, 2026. YES pays out if the highest temperature reaches exactly 23°C or stays below that threshold. The resolution window closes at 12:00:00 on May 13, 2026. YES (23°C or below): Priced at $0.80, implying an 80.4% probability.NO (24°C or higher, across multiple outcome bands): Priced at $0.20, implying a 19.6% probability distributed across outcomes at 24°C, 25°C, 26°C, 27°C, 28°C, 29°C, 30°C, 31°C, 32°C, and 33°C or above. The NO side pays out if Qingdao’s high climbs to 24°C or beyond. That scenario requires a warm air mass to push inland from the south or west, overriding the typical Yellow Sea marine influence that keeps coastal Qingdao cooler than inland Shandong cities in early-to-mid May. The city’s topography and coastal exposure have historically suppressed those outlier warm days. When a warm surge does arrive, it tends to follow a specific synoptic pattern: a southwesterly flow breaking down the marine boundary layer. Without that pattern in place, 24°C or above is the lower-probability outcome. Sponsored Partner Momentum and Market Signals Pointing One Direction The composite momentum reading here is unambiguous. A 57.0% jump over one hour, combined with a 33.9% gain over 24 hours and a trend score of 86.87, points to a sharp repricing event. That kind of move in a hyperlocal weather market usually means a credible near-term forecast update landed, likely from a regional numerical weather prediction model showing temperatures holding well under the threshold on May 13. Total market volume sits at $16,073, with $11,247 traded in the last 24 hours. Liquidity is $6,789. These are thin figures. Volume below $1 million means a single meaningful trade can move the price sharply in either direction. The current 80.4% probability reflects genuine conviction from active traders, but the thin book means any surprise forecast update could reprice this contract quickly before resolution. 1h change (+57.0%) and 24h change (+33.9%) together signal a single repricing event, not gradual drift. A forecast update is the most likely driver.Trend score of 86.87 confirms sustained directional pressure toward YES, not a spike followed by reversal.$11,247 in 24h volume against $6,789 liquidity means the market is active relative to its book depth. Price remains sensitive to new information.Trader sentiment is 80.4% YES / 19.6% NO. That gap is wide enough to read as near-consensus, not a contested market.The 30-day price range runs from 0.22 to 0.80. The contract opened near its low and has moved to its high, consistent with forecast clarity arriving close to the resolution date. Lines Analysis: What Supports Each Side The case for YES rests on Qingdao’s well-documented marine climate behavior in May. The Yellow Sea keeps coastal temperatures anchored. China Meteorological Administration stations in Qingdao regularly record mid-May highs in the 18°C to 23°C range. For the high to stay at 23°C or below on May 13, conditions simply need to remain typical. The sharp upward momentum in this contract suggests that is exactly what regional forecast models are showing. What makes NO real is a synoptic weather shift. A southwesterly warm advection event, the kind that occasionally breaks Qingdao’s marine temperature cap, would push the daily high above 24°C. The China Meteorological Administration’s regional forecast would need to show that pattern developing. As of the current timestamp, the market is pricing that pattern as absent. The 19.6% NO probability is not zero, because weather forecasts carry inherent uncertainty within 24 hours of resolution. But the NO outcome requires conditions the market does not currently expect. China Meteorological Administration forecast updates in the next few hours are the highest-priority signal. Any shift toward warmer conditions would reprice this contract toward NO.Numerical weather prediction model runs from the European Centre for Medium-Range Weather Forecasts and NCEP GFS covering Shandong Province on May 13 would confirm or challenge the current consensus.Satellite-derived sea surface temperature anomalies in the Yellow Sea influence the marine boundary layer strength. A warm SST anomaly weakens the cooling effect.Surface pressure gradient data showing a strong high-pressure system over the Yellow Sea would reinforce the YES outcome by locking in marine air. The $16,073 total volume reflects a niche hyperlocal market, not a deeply liquid instrument. What the data favors is clear: the marine climate pattern, the current forecast signal embedded in this price move, and Qingdao’s historical May temperature distribution all point toward YES. The market is not pricing science uncertainty here. It is pricing the small but real chance that a weather system behaves unexpectedly in a short window. LINES VERDICT Temperature Holds Below the Threshold Qingdao’s coastal climate and the sharp momentum repricing in this contract both point toward the daily high staying at 23°C or below on May 13. The data doesn’t care about the politics, and here the data is straightforward: marine air, a typical May pattern, and a strong forecast signal all favor YES. What the market says: An 80.4% probability reflects near-consensus among active traders, though the thin liquidity of $6,789 means this price can shift fast if any new forecast data arrives before the 2026-05-13 12:00:00 resolution. Key unknown: A China Meteorological Administration forecast update showing warm southwesterly advection reaching Qingdao on May 13 is the single data point that would reprice this contract sharply toward NO. Frequently Asked Questions What does 80.4% probability mean here? It means traders collectively assign roughly an 80% chance that Qingdao’s official high temperature on May 13 records at 23°C or below. It is a market-implied probability, not a meteorological guarantee.How does the NO contract pay out? The NO side pays if Qingdao’s high reaches 24°C or above on May 13, across any of the alternative outcome bands from 24°C up to 33°C or higher.What data would move this price before resolution? A China Meteorological Administration forecast update showing a warmer-than-expected pattern for Qingdao on May 13 would push the NO probability higher and deflate the current 80.4% YES price.When does this market resolve? Resolution occurs at 12:00:00 on May 13, 2026, based on the official highest temperature recorded for Qingdao that day.Is the volume reliable? Total volume is $16,073 with $6,789 in liquidity. This is a thin market. Prices can move sharply on a single trade or new forecast data, so the current probability should be read with that caveat. This analysis reflects market conditions as of 2026-05-12 23:10:23. 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 Marine Air Holds Firm A stable high-pressure system over the Yellow Sea locks in cool maritime air over Qingdao on May 13. Regional numerical weather models confirm temperatures peaking at or below 23C. The YES probability pushes above 90% as resolution approaches and no disruptive weather pattern emerges in the final forecast runs. Warm Advection Breaks the Cap A southwesterly wind surge erodes the Yellow Sea marine boundary layer, pushing Qingdao's afternoon high to 24C or 25C. The China Meteorological Administration updates its regional forecast to reflect the warm pattern. Traders reprice the NO side sharply, and the current 80.4% YES probability collapses in the final hours before resolution. NO Gains Ground on Late Forecast Shift A late-breaking model update from ECMWF or the GFS shows warmer-than-expected conditions developing over Shandong Province on May 13 morning. The thin liquidity of $6,789 means even modest NO-side buying moves the price. Traders who bought NO at 0.20 see meaningful gains if the forecast shift holds through resolution. Measurement Ambiguity at Resolution Official temperature readings from Qingdao's meteorological stations occasionally differ from automated or airport-based measurements. If the resolution source records a borderline reading at exactly 23C or 24C, the market faces a close call. In a thin-volume contract with $16,073 total traded, even a one-degree measurement ambiguity could produce an unexpected resolution outcome. Key macro factor: La Nina conditions weakening in the western Pacific in early 2026 have allowed warmer continental air masses to push eastward into coastal China more frequently than in prior La Nina years, adding marginal upside risk to NO-side temperature outcomes in Shandong Province. Market Timeline May 11, 2026, 4:06 AM Market Created May 11, 2026, 4:30 AM Event Start May 11, 2026, 4:37 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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