Home / Prediction Markets / Science / Qingdao April 29 High Temperature: Will It Hit 21°C? Qingdao April 29 High Temperature: Will It Hit 21°C? View on Polymarket → Share SR Sofia Renard Climate & Science Analyst Market Resolved Embed NEW Embed this market Full Compact Copy Published April 29, 2026 7 min read Resolution Verdict YES Market Resolved Market has ended. Final implied probability: 100%. Resolved Volume $28.8K $24.1K in 24h Liquidity $659.8K Deep liquidity Time Left Ended Resolves Apr 29 29K Vol. Ended 1H 6H 1D 1W 1M ALL Select lines to display 21°C $4K Vol. 100% Yes 100¢ No 0¢ 17°C or below $10K Vol. 0% Yes 0¢ No 100¢ 18°C $7K Vol. 0% Yes 0¢ No 100¢ 19°C $3K Vol. 0% Yes 0¢ No 100¢ 20°C $2K Vol. 0% Yes 0¢ No 100¢ 22°C $904 Vol. 0% Yes 0¢ No 100¢ The Qingdao temperature market has essentially closed its deliberations before the thermometers finish their work. With a 98.2% implied probability on the 21°C outcome, traders are not treating this as a live competition between temperature bands. They are treating it as a confirmation event. The 24-hour price movement tells the whole story: a contract that opened this morning at 0.26 now sits at 0.98, a 39.6% single-day surge that reflects incoming weather data landing on top of forecast models. Here’s what the measurements are telling us. Qingdao sits on the southern Shandong Peninsula, facing the Yellow Sea. Late April temperatures in this coastal city cluster tightly around the low 20s Celsius. The market resolves at 2026-04-29 12:00:00, meaning the resolution window closes at noon local time today. Traders repriced aggressively through the morning hours of April 29 as real-time temperature readings confirmed the trajectory toward 21°C and not the warmer alternatives. How the Qingdao Temperature Contract Works This contract resolves YES if the highest temperature recorded in Qingdao on April 29, 2026 lands at exactly 21°C. Resolution comes from the market’s designated weather data source, which pulls official meteorological station readings. The contract closes at noon on April 29, so only morning peak readings within that window count toward resolution. 21°C (YES): Price 0.98, implied probability 98.2%. The market is treating this outcome as near-certain.20°C: An alternative low-end outcome if temperatures run slightly cooler than forecast.22°C: The next step up, relevant if afternoon warming pushed readings higher before noon cutoff.23°C, 24°C, 25°C, 26°C, 27°C or higher: Progressively warmer outcomes, all now essentially priced out.19°C, 18°C, 17°C or below: Cold-end outcomes the market has dismissed entirely. The NO side covers everything outside the 21°C outcome. For NO to pay out, Qingdao’s official high temperature before noon on April 29 would need to register at 20°C or below, or at 22°C or above. Given that the 21°C reading has already aligned with morning forecast data and real-time station reports, the NO case requires a meaningful deviation from what meteorological data has already indicated. Weather station readings miss their forecasted band when an unexpected frontal passage or unusual sea-breeze interaction alters the surface temperature at the exact measurement moment. That kind of last-hour shift is what the 1.8% NO probability is pricing. Sponsored Partner Momentum and Market Conviction Around a Near-Certain Outcome The combined momentum signal here is sharp and directional. The 1-hour change of 0.0% with a 24-hour change of +39.6% and a trend score of 64.60 tells a specific story: the market moved hard and fast on new information, then stopped moving because there is nothing left to price in. The 39.6% single-day surge was almost certainly driven by morning weather station data and updated forecasts confirming the 21°C reading as the day’s peak before the noon cutoff. Total volume sits at $26,174, with $24,970 of that changing hands in the last 24 hours. Liquidity stands at $90,823. Volume under $1 million means this market is thin by prediction market standards, and the price can move sharply on even a modest trade. The near-total absence of additional trading after the morning repricing suggests traders who reviewed the data reached the same conclusion quickly and stopped adding positions. The order book depth of $90,823 against $26,174 in total volume is unusually high, indicating market makers set wide liquidity buffers against a potentially volatile binary resolution. YES at 0.98: The 39.6% 24-hour surge reflects real-time morning weather data confirming the 21°C trajectory before the noon resolution window closes.24-hour volume at $24,970: Nearly all market activity compressed into a single repricing session on April 29 morning.Trend score of 64.60: Confirms sustained directional momentum, not a noise spike or single large trade.1-hour change at 0.0%: The market has priced what it knows and is now waiting for resolution, not new information.Liquidity at $90,823: Unusually high relative to volume, suggesting market makers are prepared for a resolution-day correction if readings deviate. Lines Analysis: What the Qingdao Data Supports The 98.2% probability reflects a market that has ingested available meteorological data and converged on a single outcome. Qingdao’s April climate sits in a narrow thermal band. Late April in coastal Shandong consistently produces high temperatures between 18°C and 24°C, with the low 20s as the modal outcome. A 21°C peak before noon on April 29 aligns with the seasonal climatological baseline and with the forecast data that traders were clearly responding to through this morning’s price action. The data doesn’t care about the politics of weather prediction markets: the numbers moved because the thermometer data moved. The realistic NO scenario is narrower than 1.8% might imply in a higher-stakes market. A NO resolution requires the official Qingdao meteorological station to log a peak below 21°C or above 21°C before noon. The most plausible version: an unexpected strengthening sea breeze off the Yellow Sea keeps the surface temperature at 20°C into late morning, or a brief cloud break pushes the reading to 22°C just before the cutoff. Neither is likely given how firmly the market repriced, but in a thin-volume market with a binary cutoff at exact temperature bands, the precision required for YES resolution is genuinely high. One degree in either direction flips the entire outcome. Signals to monitor before 2026-04-29 12:00:00: Official Qingdao meteorological station readings between now and noon should confirm or challenge the 21°C trajectory established in morning data.Any surprise Yellow Sea sea-breeze event would be the primary mechanism for a sub-21°C reading before the cutoff.Thin liquidity means a small number of late trades could briefly reprice the market if an unexpected reading emerges, but order book depth at $90,823 should absorb most moves.Resolution source methodology matters here: if the market uses a specific time-of-day measurement rather than a rolling peak, the exact cutoff mechanics affect whether morning highs or midday readings govern the outcome. Against the $26,174 total volume, the market has made a clear statement: the data favors the 21°C band, and the afternoon precision risk is small but real. This is not a case of the market pricing uncertainty over science. The market has priced specific meteorological data and concluded it points one direction before the clock runs out. LINES VERDICT Qingdao Confirmed: Measurement Precision Is the Only Remaining Risk The market moved on real data this morning, converged on 21°C, and stopped trading. The only remaining question is whether the official reading lands precisely at 21°C rather than one degree in either direction. What the market says: 98.2% probability on 21°C, reflecting near-complete trader consensus built from morning meteorological data. Thin total volume of $26,174 means this price is directionally reliable but a late weather deviation could trigger a sharp swing before 2026-04-29 12:00:00. Key unknown: Whether the official Qingdao meteorological station logs the peak at exactly 21°C before noon, or whether a sea-breeze cooling event or unexpected cloud break pushes the registered high by one degree in either direction. Frequently Asked Questions What does 98.2% probability mean here? Traders collectively assign a 98.2% chance that Qingdao’s official peak temperature before noon on April 29 will register at exactly 21°C, based on available weather data.What happens to the NO contract? If the official Qingdao station reading before 2026-04-29 12:00:00 lands at 20°C or below, or at 22°C or above, NO pays out at full value.What data or event would move this price before resolution? A real-time station reading diverging from the 21°C forecast before noon would immediately reprice both sides, given how thin this market is at $26,174 total volume.When does this market resolve? Resolution occurs at 2026-04-29 12:00:00, meaning only temperature readings before noon local time on April 29 count.Is the volume reliable for reading conviction? Total volume of $26,174 is below $1 million, which means liquidity is thin and a single trade can move the price sharply. The 98.2% price reflects directional consensus but not deep capital commitment. This analysis reflects market conditions as of 2026-04-29 02:10:19. Prediction market probabilities are volatile and shift as new data and regulatory decisions emerge, especially as the 2026-04-29 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 Apr 29, 2026 Duration 1 day Resolution Analysis Morning Data Holds Into Resolution Qingdao meteorological station readings continue tracking at 21°C through late morning, confirming the trajectory that drove the 39.6% overnight repricing. No sea-breeze anomaly or frontal passage interrupts the surface temperature before the noon cutoff. The 98.2% probability holds and the contract resolves YES. Sea Breeze Pushes Reading to 20°C An unexpected strengthening of the Yellow Sea sea breeze keeps Qingdao's surface temperature at 20°C through the late morning window. The official station reading never reaches 21°C before noon. The thin $26,174 total volume market reprices sharply as NO probability spikes from 1.8% toward a realistic payout scenario. Cloud Break Pushes Reading to 22°C A brief reduction in morning cloud cover allows solar heating to push the official station reading to 22°C just before the noon cutoff. The 21°C contract misses by one degree upward. The 22°C alternative outcome captures value and the primary YES contract resolves NO despite the overall warm day. Resolution Source Methodology Dispute The market's designated weather data source uses a different measurement window or station than traders assumed when pricing the 21°C outcome. A methodology discrepancy between forecast models and official measurement timing triggers a last-minute resolution dispute. Thin liquidity at $26,174 amplifies any repricing as uncertainty enters a market that had treated outcome as settled. Key macro factor: Qingdao's late April coastal climate is shaped by Yellow Sea sea surface temperatures and East Asian spring monsoon onset, both of which influence the narrow thermal band that makes one-degree precision critical for this contract. Market Timeline Apr 27, 2026, 10:05 PM Market Created Apr 27, 2026, 10:15 PM Event Start Apr 27, 2026, 10:20 PM Market Opened Apr 29, 2026 Market Resolution Related Prediction Markets Moving Now Highest temperature in Milan on July 21? 30°C 100% Yes No 24°C or below 0% Yes No Read Article Moving Now Highest temperature in London on July 21? 22°C 100% Yes No 23°C 0% Yes No Read Article Moving Now Highest temperature in Hong Kong on July 21? 30°C 100% Yes No 31°C 0% Yes No Read Article Moving Now Highest temperature in Helsinki on July 21? 14°C 100% Yes No 11°C or below 0% Yes No Read Article Moving Now Highest temperature in Madrid on July 21? 37°C 100% Yes No 38°C 0% Yes No Read Article Moving Now Highest temperature in NYC on July 21? 82-83°F 99% Yes No 84-85°F 1% Yes No Read Article Moving Now Highest temperature in Beijing on July 22? 28°C 46% Yes No 29°C 33% Yes No Read Article Moving Now Highest temperature in Wuhan on July 22? 31°C 42% Yes No 30°C 30% Yes No Read Article Moving Now Magnitude 6.5+ earthquake in LA before 2027? 15% chance Yes No Read Article Loading... 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