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Wuhan June 30 High Temp: Will It Hit 29°C?

Wuhan June 30 High Temp: Will It Hit 29°C?

Market called it correctly

Implied 100% at publication · Resolved YES · Brier score: 0.00

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SR Sofia Renard Climate & Science Analyst
Market Resolved
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Resolution Verdict
YES Market Resolved

CONDITIONAL YES: Short-range model convergence supports 29°C as the plurality outcome in a multi-bucket field, but sub-$50K volume means one forecast update reprices everything before noon resolution. Market probability: 63.5%.

Resolved
Volume
$85.9K
$65.1K in 24h
Liquidity
$52.6K
Moderate depth
Time Left
Soon
Resolves Jun 30
86K Vol. Jun 30, 2026

Something sharp happened in this market overnight. The contract pricing a 29°C high temperature in Wuhan on June 30 jumped more than 32 percent in a single hour and is now sitting at 63.5 percent implied probability. That is not a gradual drift. That is traders repositioning fast in response to a forecast signal. Here is what the measurements are telling us: Wuhan’s late-June climate sits squarely in its hottest window, and the short-range numerical weather models are converging on a reading right in the 29°C to 31°C range.

The market question asks whether the highest temperature recorded in Wuhan on June 30 will resolve at exactly 29°C. YES contracts trade at $0.64 and NO contracts at $0.37. The market closes June 30, 2026 at noon local time. Total volume stands at $49,680, with $44,916 of that traded in the last 24 hours. This contract went live at $0.24 and has nearly tripled in price since open.

How the Wuhan 29°C Temperature Contract Works

This contract resolves YES if official temperature monitoring shows June 30’s highest recorded temperature in Wuhan equals exactly 29°C. The resolution source is market resolution, meaning the operator will use official meteorological data to confirm the daily maximum. If the reading comes in at 28°C, 30°C, or any other value, this specific contract pays NO.

  • YES ($0.64, 63.5% implied): The daily high in Wuhan on June 30 is confirmed at exactly 29°C.
  • NO ($0.37, 36.5% implied): The daily high lands at any other temperature, including 28°C or 30°C.

The NO side wins if Wuhan runs hotter or cooler than 29°C. Wuhan in late June frequently pushes into the low-to-mid 30s during heat events. A stronger-than-expected heat surge landing the high at 31°C or above would push every dollar on NO into profit. Cooler outflow from a frontal system dropping the reading to 27°C or 28°C would do the same. The 29°C threshold is precise. Weather is not.

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Momentum and Market Signals: A Violent Repricing

The momentum composite here is extreme. A 32 percent one-hour move and 34.5 percent 24-hour move with a trend score of 83.68 signal one thing: new forecast data arrived and traders responded immediately. This kind of repricing in a short-range weather market almost always traces to a model run update, either a European Centre or GFS output that sharpened the 29°C reading as the most likely single-degree outcome for June 30.

Total volume of $49,680 is thin. Nearly all of it, $44,916, printed in the last 24 hours. Liquidity sits at $47,444. Because volume is well below $1 million, this price can move sharply on any new forecast update. One significant model shift tonight or early tomorrow morning could reprice this contract by 10 to 20 percentage points in either direction. Treat the current 63.5 percent with appropriate skepticism about its stability.

  • The 32 percent one-hour price surge connects directly to a converging short-range forecast window: models are now within 36 hours of resolution, reducing uncertainty.
  • The 24-hour move of 34.5 percent suggests multiple traders acted on the same signal independently, not a single large position.
  • Volume concentration in the last 24 hours (90 percent of total) confirms this market was dormant until the forecast window tightened.
  • Liquidity at $47,444 is adequate for small positions but thin enough that a medium-sized trade could gap the price meaningfully.
  • The trend score of 83.68 ranks this among the higher-conviction short-term weather moves on the board right now.

Lines Analysis: What the Wuhan Forecast Is Really Saying

The data does not care about the politics, and here the data is fairly straightforward. Wuhan’s average daily maximum for late June sits in the 30°C to 32°C range historically. A 29°C reading would represent a slightly below-average day for this part of the calendar. That is entirely plausible under a scenario where a weak frontal boundary or increased cloud cover keeps temperatures from climbing into the low 30s. Short-range models apparently like this scenario right now, which explains the price surge.

What makes NO real is the same Wuhan climatology working in reverse. The city sits in the Yangtze River basin and is notorious for its oppressive summer heat. A standard heat-pressure pattern for late June pushes highs well above 29°C. If the synoptic setup strengthens even modestly, the reading lands at 31°C or 32°C, and this entire contract deflates. The barrier is thin: one degree separates a YES resolution from a NO resolution on the high side, and two degrees separate it from a NO on the low side.

  • If the next GFS or ECMWF model run shifts the Wuhan high forecast above 30°C, expect the YES price to drop sharply before resolution.
  • A persistent cloud cover or precipitation event in Wuhan on June 30 would suppress the high and could push this toward 27°C or 28°C, also a NO outcome.
  • Overnight low temperatures on June 29 feeding into June 30 can anchor the daily trajectory. Warmer overnight lows tend to precede hotter afternoon maxima.
  • Resolution happens at noon local time, meaning only the morning peak matters if temperatures have not fully climbed.
  • Any official meteorological service update to Wuhan station data before market close could trigger a last-minute reprice.

Total volume of $49,680 is real but thin. The market is pricing uncertainty, not science. At 63.5 percent, traders are saying the 29°C outcome is more likely than any single competing temperature, which is mathematically reasonable in a multi-outcome market split across eleven buckets. But it is not saying 29°C is a near-certainty. The data favors the YES side right now based on short-range model convergence. One more forecast update before resolution will either confirm or collapse that thesis.

LINES VERDICT

CONDITIONAL YES, FORECAST-DEPENDENT

Short-range model convergence drove a dramatic repricing toward 29°C as the most likely single outcome for Wuhan on June 30. The market is right to move in this direction given a tightening forecast window, but thin volume means this price is not locked in.

What the market says: At 63.5 percent implied probability, the market has positioned 29°C as the plurality favorite in a multi-outcome field. With less than 24 hours to resolution and volume below $1 million, any forecast update or model shift can reprice this contract significantly before the June 30 noon close.

Key unknown: The next European Centre or GFS model run covering the Wuhan area for June 30 afternoon hours is the single most important data point. If that run holds the high at 29°C, YES consolidates. If it shifts toward 31°C or higher, this market flips fast.

Frequently Asked Questions

It means traders currently believe there is roughly a 64-in-100 chance the highest temperature in Wuhan on June 30 lands at exactly 29°C. In a multi-outcome market split across eleven temperature buckets, this makes 29°C the plurality favorite.

NO pays out if the official daily high in Wuhan on June 30 lands at any temperature other than 29°C, including 28°C, 30°C, or higher values. NO contracts currently trade at $0.37, implying a 36.5% probability of a non-29°C resolution.

The next European Centre or GFS short-range model run covering Wuhan for June 30 afternoon hours. If the forecast shifts above 30°C or below 28°C, the YES price will reprice sharply. These runs update every six to twelve hours.

The market resolves on June 30, 2026 at noon local time. Resolution is based on official meteorological data confirming the highest temperature recorded in Wuhan on that date.

Total volume is $49,680, well below $1 million. This is a thin market. The current 63.5% price can move 10 to 20 percentage points on a single new forecast or a medium-sized trade. Treat the price as directional, not definitive.

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.

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.

No. Lines is an editorial and data product. We do not operate prediction markets, custody funds, or accept bets. All bet flows deep-link to Polymarket via our affiliate code. Probabilities shown are market-implied and not predictions or recommendations.

Market Resolved Outcome: YES
Final Price 100%
Settled Jun 30, 2026
Duration 2 days

Resolution Analysis

Model Convergence Holds

If the next GFS and European Centre runs both confirm a Wuhan high in the 29°C range for June 30, late money will flood into YES and the price could climb above 75 percent. Frontal cloudiness or light precipitation suppressing afternoon heating is the physical mechanism that makes this plausible.

Heat Surge Pushes Past Thirty

Wuhan's late-June climatology runs hot. A standard high-pressure setup without cloud cover easily delivers highs of 31°C to 34°C. If the next model run shifts the forecast upward by just two degrees, the YES price collapses and every competing contract above 30°C gains ground rapidly.

Cooler Air Mass Drops Reading to Twenty-Eight

A stronger-than-expected frontal boundary moving through central China could suppress Wuhan's high to 27°C or 28°C. That outcome is a NO for this contract but would benefit the 27°C and 28°C buckets. Traders holding 28°C or lower contracts would see sharp gains if overnight model runs show southward frontal progression.

Noon Resolution Cutoff Creates Timing Risk

This market resolves at noon local time, not end-of-day. If Wuhan's actual peak temperature occurs between 2pm and 4pm, as is typical in summer, the official noon reading could undercount the true daily high. Any ambiguity in how the resolution operator defines the measurement window could reprice this contract at the last minute.

Key macro factor: Wuhan sits in a region experiencing intensified summer heat patterns consistent with the broader trend of elevated anomalies across East Asia in 2025 and 2026, making above-average June highs structurally more probable than historical baselines suggest.

Market Timeline

Jun 28, 4:02 AM
Market Created
Jun 28, 4:03 AM
Market Opened
12:00 PM
Market Resolution

Market Comments

Probabilities shown are market-implied and not predictions or recommendations. This content is for informational purposes only.