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Beijing July 16 Peak Heat: Will 34°C Hold?

Beijing July 16 Peak Heat: Will 34°C Hold?

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SR Sofia Renard Climate & Science Analyst
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Lines Verdict
YES at 93% implied probability

FORECAST CONFIRMED: The 24-hour repricing reflects weather model convergence around 34°C, and the order book depth confirms trader conviction. Market probability: 92.5%.

93% Market Probability
1h +49.5% 24h +62.0% Trend Strong (87/100)
Volume
$106.8K
$81.9K in 24h
Liquidity
$126.0K
Deep liquidity
Time Left
10 hours
Resolves Jul 16
107K Vol. Jul 16, 2026
34°C $9K Vol.
93%
35°C $10K Vol.
8%
36°C $12K Vol.
1%
31°C or below $15K Vol.
0%
32°C $24K Vol.
0%
33°C $17K Vol.
0%

Beijing’s thermometers are the only thing that matters right now. The market has priced this contract at 92.5% for 34°C as the day’s high temperature on July 16. That is not a guess. That is a market that has watched the forecast converge and moved sharply upward in the last 24 hours to reflect it.

The market question asks: what is the highest temperature in Beijing on July 16? The 34°C outcome sits at $0.93 YES and $0.08 NO. The contract resolves at 2026-07-16 12:00:00. Total trading volume has reached $106,813, with $81,938 of that arriving in the last 24 hours alone.

How the 34°C Contract Works

A YES resolution requires Beijing’s official recorded high temperature on July 16 to land at exactly 34°C. The resolution source is the market’s designated data provider for that measurement. A NO resolution means the peak temperature falls at any other value, whether 33°C, 35°C, or anywhere else across the full outcome set.

  • 34°C YES: $0.93 per share, implying 92.5% probability
  • 34°C NO: $0.08 per share, implying 7.5% probability

The NO side pays out when Beijing’s high temperature misses 34°C entirely. Beijing’s July heat is volatile enough that a 1°C shift in either direction is physically plausible. A stronger-than-expected afternoon heat pulse could push the reading to 35°C. A cloud band or wind shift could cap it at 33°C. Those two scenarios split the NO probability almost evenly.

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Momentum and Market Signals

The combined momentum signal here is unusually strong. The 1-hour price change is flat at 0.0%, but the 24-hour change is up 15.5%, and the trend score sits at 49.66. That pattern means the repricing has already happened. The market absorbed new forecast information, moved fast, and is now holding. The driver is almost certainly a weather model update that tightened the temperature forecast range around 34°C for Beijing on July 16.

Total volume of $106,813 with $81,938 arriving in 24 hours signals real conviction. Liquidity stands at $125,982, which is healthy for a single-day temperature contract. This is not a thin market. Price can still move on a late forecast revision, but the order book depth suggests it would take a significant data shift to reprice meaningfully before resolution.

  • The 24-hour price surge of 15.5% reflects a forecast convergence event, most likely a model run that centered on 34°C.
  • The 1-hour flatline at 0.0% means the market has digested that information and is waiting for resolution.
  • A trend score of 49.66 places this in neutral-to-bullish territory, consistent with a market that has priced the outcome but not overshot.
  • Liquidity of $125,982 exceeds total volume, meaning the order book can absorb new trades without sharp slippage.
  • The 34°C outcome competes against ten alternative outcomes, which fragments NO probability across a wide range.

Lines Analysis: What the Beijing Forecast Says

Beijing in mid-July regularly posts highs in the 33°C to 37°C range. The climate pattern for this date is consistent with temperatures that sit right in that window. The market’s 92.5% confidence in exactly 34°C reflects forecast precision, not just seasonal averages. Weather models for short-range predictions at 24 hours or less can be remarkably accurate for peak temperature, especially when synoptic conditions are stable. That is likely what happened here: a 24-hour model run showed strong agreement around 34°C, and the market repriced immediately.

The barrier for the NO side is distribution across alternatives. Beijing does not need to hit an extreme outlier for NO to pay. A reading of 33°C or 35°C is enough. July 16 weather in Beijing can shift with convective activity, urban heat island dynamics, or wind direction changes in the afternoon hours. The 7.5% NO probability is not zero. It reflects the real physical uncertainty that remains even in a well-forecast weather event.

  • Beijing Meteorological Bureau forecast data or equivalent national weather service updates before market close would directly move this price.
  • Any late-day convective development over the North China Plain could push temperatures above or below the 34°C target.
  • A morning temperature reading that tracks cooler than expected would signal NO territory.
  • Model consensus from global forecasting centers (ECMWF, GFS) narrowing further around 34°C would reinforce the YES position.
  • Resolution timing at 12:00:00 means the market closes at noon, before the typical peak heat hour in the mid-to-late afternoon. Check whether resolution uses a specific observation window or the full-day high.

The data favors YES. Total volume of $106,813 with a strong 24-hour surge reflects informed traders responding to forecast information, not speculation. The NO side has physics on its side as a hedge, but not probability. Here’s what the measurements are telling us: the models agree, the market agrees, and the remaining uncertainty is weather’s natural variability, not a forecasting failure.

LINES VERDICT

FORECAST CONFIRMED

Beijing’s July 16 temperature market has already done its work. The 24-hour repricing reflects forecast convergence, and the liquidity depth says the market believes it.

What the market says: A 92.5% implied probability translates to a market that has priced this outcome as near-certain. With resolution at 12:00:00 on July 16, any remaining volatility would require a forecast revision in the final hours before close.

Key unknown: The single most important variable is whether the resolution window captures the full-day high or only temperatures recorded by noon. If the contract closes at 12:00:00 and Beijing’s true daily peak arrives in the mid-afternoon, the resolution measurement may differ from the meteorological daily high. That ambiguity is worth understanding before trading this contract.

Frequently Asked Questions

It means traders have collectively priced a 92.5% chance that Beijing's official high on July 16 lands at exactly 34°C. The remaining 7.5% covers all other possible temperature outcomes.

NO pays if Beijing's recorded high on July 16 is anything other than 34°C, including 33°C, 35°C, or any other value across the ten alternative outcomes in this market.

A late forecast update from Beijing's national weather service or a global model revision showing temperatures diverging from 34°C would reprice this contract before the noon resolution.

The contract resolves at 12:00:00 on July 16, 2026. Note that this noon cutoff may precede Beijing's typical daily peak heat hour in the mid-to-late afternoon.

Total volume is $106,813 with $125,982 in liquidity. That depth is solid for a single-day weather contract, and prices are unlikely to move sharply without new forecast information.

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 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?

Model Consensus Holds

If Beijing's morning temperature tracks on the forecast trajectory and synoptic conditions remain stable, the 34°C high becomes increasingly locked in. Any final model run confirming the forecast would push the YES price closer to $0.97 or above as resolution approaches.

Afternoon Convection Disrupts

Beijing's July weather is vulnerable to afternoon thunderstorm development over the North China Plain. A convective outflow or unexpected cloud cover could suppress the peak to 33°C or lower. That single-degree miss is enough to collapse the YES price entirely before resolution.

Heat Pulse Pushes to 35°C

Urban heat island effects in Beijing can amplify afternoon readings beyond model expectations. A stronger-than-forecast solar radiation period combined with light winds could push the official high to 35°C. The 35°C alternative outcome would then capture most of the probability that currently sits in 34°C YES.

Resolution Window Creates Ambiguity

The market closes at 12:00:00 noon on July 16. If the resolution source uses the temperature recorded at that exact hour rather than the full-day meteorological high, the outcome could differ from what forecast models are predicting. That definitional gap is the single most underappreciated risk in this contract.

Key macro factor: Beijing's mid-July climate sits within a period of intensifying East Asian summer monsoon circulation, which typically produces hot, humid conditions with peak temperatures in the 33°C to 37°C range and elevated convective risk in the afternoon hours.

Market Timeline

Jul 14, 4:03 AM
Market Created
Jul 14, 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.