Home / Prediction Markets / Science / Wuhan July 11 High: Will Temps Hit Thirty-Eight Celsius? Wuhan July 11 High: Will Temps Hit Thirty-Eight Celsius? ☆ Watch Paper Trade View on Polymarket → Share SR Sofia Renard Climate & Science Analyst Embed NEW Embed this market Full Compact Copy Published July 10, 2026 6 min read Lines Verdict YES at 100% implied probability Lean NO, Fragmented Field: Ten competing temperature buckets and consistent negative momentum over twenty-four hours put structural edge with NO. Market probability: 38.5%. 100% Market Probability 1h +0.0% 24h +56.5% Trend Weak (46/100) Volume $98.6K $55.9K in 24h Liquidity $233.7K Deep liquidity Time Left 5 hours Resolves Jul 11 99K Vol. Jul 11, 2026 1H 6H 1D 1W 1M ALL Select lines to display 38°C $31K Vol. 100% Yes 100¢ No 0.1¢ 31°C or below $2K Vol. 0% Yes 0.1¢ No 100¢ 32°C $1K Vol. 0% Yes 0.1¢ No 100¢ 33°C $6K Vol. 0% Yes 0.1¢ No 100¢ 34°C $2K Vol. 0% Yes 0.1¢ No 100¢ 35°C $5K Vol. 0% Yes 0.1¢ No 100¢ Wuhan sits at the edge of a narrow temperature call. The market assigns a thirty-nine percent chance that July 11 brings a peak of exactly thirty-eight degrees Celsius. That window is precise, the kind of precision that punishes anyone who gets the forecast even slightly wrong. Momentum has turned against the thirty-eight degree position: the contract dropped five percent in the last twenty-four hours and shed another two percent in the past hour, signaling traders are rotating toward adjacent outcomes. The market question is simple: will Wuhan’s highest temperature on July 11 hit exactly thirty-eight degrees Celsius? The YES price sits at 0.39, the NO price at 0.62, with an implied probability of thirty-eight and a half percent. The contract resolves July 11 at noon UTC. Total trading volume stands at $56,572, with $31,318 traded in the last twenty-four hours. How the Thirty-Eight Degree Contract Works This is a single-outcome contract inside a multi-option temperature market for Wuhan on July 11. YES pays if the official peak temperature lands exactly at thirty-eight degrees Celsius. Any adjacent outcome, thirty-seven, thirty-nine, or otherwise, pays NO. The resolution source is the market operator using official meteorological data for Wuhan. YES (38°C exactly): priced at 0.39, implying a thirty-eight and a half percent probability.NO (any other temperature): priced at 0.62, implying a sixty-one and a half percent probability. For NO to pay out, Wuhan’s July 11 high simply needs to land anywhere other than thirty-eight degrees Celsius. That means thirty-seven, thirty-nine, forty, or any other reading closes the YES position. Given the width of competing outcomes across ten possible buckets, the structural edge always sits with NO in a market this fragmented. Sponsored Partner Momentum and Market Signals The momentum composite, combining the one-hour drop of two percent, the twenty-four-hour decline of five percent, and a trend score of 34.95, points in one direction: sellers are trimming thirty-eight degree exposure. The most likely driver is updated short-range weather guidance. Wuhan in mid-July typically sits in a heat corridor where regional forecasts shift quickly as surface high-pressure systems intensify or retreat. A nudge in forecast models toward thirty-nine degrees would explain the rotation out of this contract. Total volume of $56,572 and twenty-four-hour volume of $31,318 confirm this is a thin market. Liquidity of $59,786 means a single meaningful trade can move the price sharply. Here’s what the measurements are telling us: when volume is this low and momentum is negative, the price signal reflects positioning, not deep conviction. Treat the current thirty-nine percent probability as directionally informative, not precise. Key Factors The one-hour price change of negative two percent and twenty-four-hour change of negative five percent together indicate consistent selling pressure over multiple timeframes, not a single trade spike.Wuhan’s July climatology shows peak daily highs clustering between thirty-six and forty degrees Celsius, making this a genuinely open temperature range with multiple plausible outcomes.The trend score of 34.95 places momentum in bearish territory, consistent with traders shifting probability weight toward adjacent outcomes like thirty-seven or thirty-nine degrees.Thin liquidity under $100,000 means any new weather model run or official forecast update could shift the price by several percentage points within minutes. Lines Analysis: Wuhan July Temperature Call The case for thirty-eight degrees rests on where Wuhan’s climatological distribution peaks in mid-July. Surface high-pressure systems anchoring over central China during the Meiyu aftermath regularly push daily highs into the upper thirties. If the regional synoptic pattern holds steady, thirty-eight degrees is a plausible central estimate, not an outlier. The market’s thirty-nine percent probability reflects genuine meteorological uncertainty, not wishful thinking. What makes NO compelling here is structural, not just meteorological. Ten competing outcomes divide the probability space. Even if thirty-eight degrees is the single most likely outcome, a market this fragmented means the probability ceiling for any one bucket is naturally low. The data doesn’t care about the politics of which number wins. Thirty-seven or thirty-nine degrees each carry meaningful probability weight, and either one closes the YES position immediately. Signals to Monitor Any updated forty-eight-hour forecast from China Meteorological Administration pointing toward thirty-seven or thirty-nine degrees would accelerate the current selling momentum.A strengthening western Pacific subtropical high could push Wuhan’s high above thirty-nine degrees, shifting probability weight toward the forty or above buckets.Overnight low temperatures on July 10 into July 11 will calibrate daytime peak expectations. A warm overnight reading typically precedes a hotter daily maximum.Any surface cooling event, cloud cover, or precipitation in the Wuhan basin on July 11 morning would pull the daily high toward thirty-six or thirty-seven degrees. Total volume of $56,572 is thin. The market is pricing uncertainty, not science. The current thirty-nine percent probability for thirty-eight degrees is reasonable given the climatological range, but the negative momentum suggests traders with access to updated forecast data are moving away from this bucket. The fragmented outcome structure structurally limits how high any single outcome’s probability can climb. LINES VERDICT Lean NO, Fragmented Field Wuhan’s mid-July heat range is wide enough to make thirty-eight degrees plausible, but ten competing outcomes and consistent selling pressure over the past twenty-four hours put the structural edge firmly with NO. What the market says: Thirty-eight and a half percent implied probability reflects genuine meteorological uncertainty in a thin, fragmented market. With the contract resolving July 11 at noon, any forecast shift in the next twelve hours could reprice this contract sharply. Key unknown: The single most important input is the next China Meteorological Administration short-range forecast update for the Wuhan basin on July 11. A shift of even one degree in the projected daily maximum would redistribute probability weight across adjacent buckets and move this contract’s price immediately. Frequently Asked QuestionsWhat does the thirty-nine percent probability mean for the thirty-eight degree outcome?It means traders collectively estimate a roughly one-in-three chance Wuhan's July 11 high lands exactly at thirty-eight degrees Celsius. Ten competing outcomes divide the remaining probability.How does the NO contract pay out in this market?NO pays if Wuhan's July 11 peak temperature is anything other than thirty-eight degrees Celsius. Any adjacent reading, thirty-seven, thirty-nine, or otherwise, resolves YES as losing.What data or event would move this contract's price most sharply?An updated China Meteorological Administration short-range forecast shifting the projected Wuhan high by one degree in either direction would immediately redistribute probability and reprice the contract.When does this contract resolve?The contract resolves July 11, 2026 at noon UTC, using official meteorological data for Wuhan's peak temperature that day.Is the volume and liquidity reliable enough to trust the current price?Total volume is $56,572 and liquidity is $59,786. Both are thin. A single large trade can move the price sharply. Treat the current probability as directionally useful, not precise.How is the Smart Money Index calculated?We aggregate the live positions of the top 50 Polymarket whales (ranked by 30-day tracked volume) into one composite reading per market. It refreshes every hour. The percentage shows how many of those whales hold YES versus NO; the net dollar position shows the cohort's directional exposure in dollars.What is a convergence signal?A convergence event fires when three or more tracked wallets buy the same outcome on the same market within a four-hour window. We surface these in the activity feed and the VIP digest.Is Lines a market operator?No. Lines is an editorial and data product. We do not operate prediction markets, custody funds, or accept trades. All trade flows deep-link to Polymarket via our affiliate code. Probabilities shown are market-implied and not predictions or recommendations. What Could Shift These Probabilities? Forecast Locks In at Thirty-Eight If the China Meteorological Administration's next model run centers its Wuhan high forecast precisely at thirty-eight degrees Celsius, traders would flow back into the YES position. A stable synoptic pattern with the western Pacific subtropical high holding steady over central China supports this scenario. The contract could recover toward forty-five percent probability quickly given thin liquidity. Heat Intensifies Toward Thirty-Nine or Forty A strengthening western Pacific subtropical high pushing Wuhan's forecast peak above thirty-eight degrees would accelerate the current selling pressure. Forecast models pointing toward thirty-nine or forty degrees would shift probability weight to adjacent buckets and push the thirty-eight degree contract well below thirty percent. Thin liquidity amplifies any directional move. Cooler Outlook Collapses Adjacent Buckets If cloud cover or a weak frontal boundary cools the Wuhan basin toward thirty-seven degrees, probability flows away from both thirty-eight and thirty-nine, consolidating in the thirty-seven bucket. This would hurt YES here but validate the structural NO thesis. Traders watching overnight lows on July 10 into 11 will have the earliest signal. Model Disagreement Creates Late Price Spike If major global forecast models disagree sharply on Wuhan's July 11 peak in the hours before resolution, thin liquidity could produce an outsized price swing in either direction. A single large trader acting on proprietary weather data could temporarily push the YES price above fifty percent or collapse it below twenty-five percent within minutes of market close. Key macro factor: The western Pacific subtropical high's intensity and position over central China in mid-July is the dominant synoptic driver of Wuhan's daily temperature peaks during this period. Market Timeline Jul 9, 4:03 AM Market Created Jul 9, 4:03 AM Market Opened 12:00 PM Market Resolution Place paper trade No real money × Highest temperature in Wuhan on July 11? Outcome 38°C · 100% 31°C or below · 0% 32°C · 0% 33°C · 0% 34°C · 0% 35°C · 0% 36°C · 0% 37°C · 0% 39°C · 0% 40°C · 0% 41°C or higher · 0% YES $1.00 NO $0.00 Stake (USD) $100 $500 $1,000 $5,000 Pick a market to see how many shares you would hold. 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