Chengdu May 29 High Temp: Market Calls 31C

The market settled this one before noon. Chengdu’s highest temperature on May 29 has priced at 99.9% for the 31°C outcome, with momentum swinging dramatically intraday as real-time weather data confirmed the reading. The data doesn’t care about the politics, and in this case, it didn’t leave much room for doubt.

The market question asks which temperature bracket represents Chengdu’s daily high on May 29, 2026, resolving at 12:00 UTC. The 31°C outcome sits at $1.00 (implied probability: 99.9%). Competing brackets including 30°C, 32°C, 33°C or higher, and a range down to 23°C or below all trade near zero. Total volume reached $51,706, with $48,659 of that arriving in the last 24 hours.

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How the Chengdu Temperature Contract Works

This contract resolves YES for the single temperature bracket that matches Chengdu’s verified daily maximum on May 29, 2026. Each bracket is a separate binary market. The 31°C contract pays $1.00 if official temperature records confirm the daily high falls within that bracket. All competing brackets pay $0.00. Resolution occurs at 12:00 on May 29.

• 31°C (YES): $1.00, implied probability 99.9%
• 32°C: Effectively zero
• 30°C: Effectively zero
• 33°C or higher: Effectively zero
• 29°C and below brackets: Effectively zero

A payout on any competing bracket requires the official daily maximum to land outside the 31°C range. Given the intraday price action, the market has effectively ruled that outcome out. The window for a competing bracket to pay closes with market resolution at 12:00.

Momentum and Market Signals Confirm the Read

The momentum composite is striking: a 1-hour gain of 86.9% combined with a 24-hour gain of 74.4% and a trend score of 69.23 all point to a single driver — real-time temperature data confirming the 31°C reading as the day’s high approached resolution. Markets like this one spike hard when the measurement lands and traders rush to lock in the near-certain outcome.

Total volume of $51,706 is modest by prediction market standards, with $48,659 of that arriving in the last 24 hours. Liquidity stands at $125,065, which is unusually deep relative to volume. That depth kept the price from gapping erratically even as late traders piled into the confirmed outcome. Open interest is $0, meaning positions are fully settled or matched at this point.

Key Factors

• The 1-hour price change of +86.9% and 24-hour change of +74.4% reflect real-time confirmation of temperature data, not speculative positioning.
• Liquidity at $125,065 far exceeds 24-hour volume, which stabilized price discovery in the final hours.
• The 30-day low for this contract sat at $0.13, meaning earlier in the cycle significant uncertainty existed across multiple temperature brackets.
• Trader sentiment is 99.9% YES / 0.1% NO, the strongest directional lean possible in a Polymarket binary.
• Resolution at 12:00 on May 29 leaves virtually no time for new data to shift the outcome.

Lines Analysis: What the Chengdu Data Is Telling Us

Here’s what the measurements are telling us: Chengdu’s daily maximum on May 29 landed in the 31°C bracket. The price trajectory on this contract is not speculative. The dramatic intraday moves from $0.22 at open to $1.00 at close trace the arc of a weather observation becoming a confirmed fact. Traders didn’t predict this outcome; they priced it as it happened.

The case for a competing bracket paying out essentially requires a data revision or a resolution source discrepancy. Polymarket’s resolution process for temperature markets typically relies on verified meteorological records. A reading that crossed into 32°C territory or fell back to 30°C would need official confirmation to move the market at this point, and the resolution window is effectively closed.

Signals to Monitor

• Official meteorological records from the China Meteorological Administration confirming the May 29 Chengdu maximum would lock resolution at 31°C.
• Any dispute over the resolution source or measurement station could introduce brief uncertainty, though this is rare for single-day temperature markets.
• The 30°C and 32°C brackets remain the closest competing outcomes. Even a 0.5°C measurement difference would not cross a bracket boundary if the reading is firmly mid-31°C.
• Open interest at $0 suggests no unresolved exposure remains. The market is functionally closed.
• Related markets on 2026 global temperature rankings (59% probability) provide context: 2026 is running warm globally, consistent with a late-May warm day in Chengdu’s Sichuan Basin climate.

Total volume of $51,706 reflects a niche single-day weather market, not a deep liquid instrument. The market is pricing certainty, not science, at this point. All observable signals favor 31°C. No competing bracket has meaningful probability remaining.

Confirmed: Chengdu’s May 29 Daily High Priced as 31°C

The intraday momentum and near-unanimous trader positioning reflect a real-time weather reading, not forecast speculation. The 31°C bracket absorbed the entire market.

What the market says: At 99.9% implied probability, the market has already concluded this contract. The resolution window closes at 12:00 on May 29, leaving essentially no time for new data to alter the outcome. Volatility at this stage would require a data source dispute, not a new temperature measurement.

Key unknown: The only remaining question is whether the official resolution source confirms the 31°C reading without dispute. Any delay or discrepancy in the meteorological record source could introduce brief technical uncertainty, but no fundamental measurement uncertainty remains.