Chongqing May 12 Temperature: A Coin Flip at 25°C

A single degree separates the money on this market. Chongqing’s highest temperature on May 12 resolving at exactly 25°C sits at 49% probability as of May 11, 2026. That is not a confident market. That is a weather forecast with cash attached.

What makes this contract genuinely interesting is the momentum behind that 49%. The 25°C outcome has moved sharply in the last 24 hours, with price climbing nearly 20% after opening the week near 21%. Something changed in the forecast data. The market is reacting to it. Here is what the measurements are telling us.

How the Chongqing Temperature Contract Works

This contract resolves YES if the highest recorded temperature in Chongqing on May 12, 2026 is exactly 25°C. Resolution occurs at 2026-05-12 12:00:00. The contract resolves NO if the daily maximum lands on any other outcome: 24°C, 26°C, 23°C, 27°C, 22°C, 28°C, 29°C, 30°C, 21°C or below, or 31°C or higher.

• YES (25°C hits): 0.49 implied probability, 49% chance per the market.
• NO (any other temperature): 0.51 implied probability, 51% chance per the market.

The NO contract has a structural advantage that is easy to miss. Any temperature other than exactly 25°C pays out. Chongqing’s May climate sits in a transition zone between spring warmth and early summer heat. The city’s elevation and basin geography produce afternoon highs that can vary by 3 to 5 degrees depending on cloud cover, humidity, and wind direction. A 24°C or 26°C reading is not a near-miss. It is a full NO resolution. The target is narrow.

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Momentum and Market Signals

The combined momentum signal here is strong. A 1-hour gain of 18.0%, a 24-hour gain of 19.5%, and a trend score of 80.64 all point in the same direction. That kind of alignment typically follows a forecast update from a major weather service. China Meteorological Administration data or a global model like ECMWF showing a 25°C ceiling for Chongqing on May 12 would explain exactly this pattern.

Total market volume is $28,116 with $23,770 traded in the last 24 hours. Liquidity sits at $10,829. Volume below $1 million means this contract can reprice sharply on a single forecast update. One new model run showing 26°C instead of 25°C could push the YES price back toward 30%. Treat the current price as a snapshot, not a conviction signal.

• 1-hour price change (+18.0%) and 24-hour change (+19.5%): Both figures confirm a directional shift in the last day, likely tied to a forecast model update showing 25°C as the most probable daily maximum.
• Trend score of 80.64: High relative to a weather market with less than 24 hours to resolution. Suggests concentrated buying, not gradual drift.
• $10,829 liquidity: Thin. New data can move price materially with modest trade size.
• $23,770 in 24-hour volume: Nearly the entire market’s total volume traded in one day. Activity is concentrated at the current forecast.
• 51% NO probability: The market still slightly favors a miss, reflecting the narrow target of a single degree outcome.

Lines Analysis: Chongqing’s May Forecast Window

The case for YES rests entirely on forecast convergence. Chongqing’s May 12 outlook has multiple global models showing daily maximums in the 24-26°C range. When models cluster around a narrow band, the probability of any single degree within that band rises. The 18-20% price surge in 24 hours suggests traders found a forecast model or local weather service update that sharpened the probability around 25°C specifically.

The risk to YES is resolution precision. Chongqing’s basin topography creates microclimatic variation. The China Meteorological Administration measures at official stations, and a reading of 25.4°C rounds differently than 24.6°C depending on rounding conventions. The contract specifies 25°C exactly. If the official high comes in at 26°C due to an afternoon heat pulse, or holds at 24°C due to cloud cover, the entire YES position loses. That is not a low-probability scenario in a transitional weather pattern.

• China Meteorological Administration forecast update: Any revision to the May 12 Chongqing high above or below 25°C would reprice this contract immediately.
• ECMWF or GFS model consensus: If the 00Z or 12Z model runs tighten around 25°C, YES probability climbs. A spread to 26°C pushes money toward adjacent contracts.
• Overnight low on May 11-12: A warmer overnight low suggests more energy available for afternoon heating, which could push the daily max toward 26°C or higher.
• Cloud cover and precipitation forecast: Any rainfall forecast for Chongqing on May 12 suppresses the daily maximum and shifts probability toward 24°C or lower outcomes.
• Resolution time: The contract resolves at 2026-05-12 12:00:00. That is midday local time. If resolution uses the 12:00 reading rather than the daily maximum, the temperature at noon in Chongqing may differ from the afternoon peak.

At $28,116 total volume, this is a narrow market with one day left. The data currently favors 25°C as the most-probable single outcome, but the NO contract covers everything else. The market is pricing uncertainty, not science. With resolution in less than 27 hours, the next forecast model run is the only thing that matters.

LINES VERDICT

Narrow Forecast Window, Single-Degree Target

The momentum is real and the forecast data appears to support 25°C as the modal outcome for Chongqing on May 12. But a single degree is a punishing resolution criterion in a basin climate with afternoon variability.

What the market says: 49% probability that Chongqing’s official high on May 12 lands at exactly 25°C. The slim NO-side edge at 51% reflects how many ways this contract can resolve against the favored outcome. With resolution at 2026-05-12 12:00:00, price can shift materially on any forecast update before then.

Key unknown: The next China Meteorological Administration forecast update or global model run for Chongqing on May 12. A shift of even one degree in the projected daily maximum would reprice this market sharply in a thin-liquidity environment.

Scientific Context: Chongqing’s May Climate

Chongqing sits in the Sichuan Basin, one of China’s hottest and most humid regions. May is a shoulder month: average daily highs run from 23°C to 28°C depending on the year and synoptic pattern. The city’s reputation as one of China’s three furnace cities applies more to July and August, but May can produce early heat events when subtropical high pressure builds from the south. Historical May daily maximum temperatures at Chongqing station show significant day-to-day variability. A 25°C high is firmly within the normal range for mid-May. So is 24°C. So is 26°C. The data does not tell us which one lands tomorrow. That is why this contract sits at 49%.

Frequently Asked Questions

• What does 49% probability mean here? The market assigns roughly even odds to the 25°C outcome. A 49% YES price means traders collectively see the daily high landing at exactly 25°C as almost as likely as any other outcome combined.
• What does the NO contract pay out on? The NO contract resolves in favor of any temperature other than 25°C. That includes 24°C, 26°C, 27°C, or any reading outside that range. NO covers all outcomes except the single target.
• What data would move this price before resolution? A China Meteorological Administration forecast update or a ECMWF or GFS model run showing a daily maximum above or below 25°C for Chongqing on May 12 would shift the YES price immediately.
• When does this market resolve? The contract resolves at 2026-05-12 12:00:00. That is less than 27 hours from the timestamp of this analysis on May 11, 2026.
• Is $28,116 in volume enough to trust the price? No. Liquidity at $10,829 is thin. A single large trade or a new weather forecast can move the price by 15 to 20 percentage points without requiring significant capital.

This analysis reflects market conditions as of 2026-05-11 09:15:25. Prediction market probabilities are volatile and shift as new data and regulatory decisions emerge, especially as the 2026-05-12 12:00:00 resolution date approaches. Lines.com does not accept bets or provide financial or gambling advice. All market outcomes are uncertain.