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Busan July 6 Peak Temp: Will 29°C Hit?

Busan July 6 Peak Temp: Will 29°C Hit?

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SR Sofia Renard Climate & Science Analyst
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Lines Verdict
YES at 100% implied probability

THIN MARKET: The 29°C bracket is climatologically central but a ten-outcome market with minimal volume prices weather uncertainty, not conviction. Market probability: 43%.

100% Market Probability
1h +0.0% 24h +61.0% Trend Weak (32/100)
Volume
$66.7K
$56.5K in 24h
Liquidity
$151.4K
Deep liquidity
Time Left
4 hours
Resolves Jul 6
67K Vol. Jul 6, 2026

Busan’s July 6 high-temperature market is one of the more granular weather prediction contracts on Polymarket right now. The market asks a specific question: will Busan’s peak temperature on July 6 land exactly at 29°C? Traders are pricing that outcome at roughly 43%, with the remaining probability spread across ten other brackets ranging from 24°C or below up to 34°C or higher. The spread tells the real story here.

The market question asks: what will the highest temperature in Busan be on July 6, 2026? The YES price sits at 0.43, the NO price at 0.58, and the contract resolves at 12:00 UTC on July 6. Total volume is $3,226, all of it recorded in the last 24 hours, which means this is a brand-new market with essentially zero trading history to draw from.

How the Twenty-Nine Degree Contract Works

A YES resolution requires Busan’s official peak temperature on July 6 to settle precisely at 29°C. The resolution source is the market itself, which typically draws on official Korean Meteorological Administration (KMA) station data for Busan. Any reading above or below 29°C — even by one degree — resolves the contract NO.

  • YES (29°C exactly): priced at 0.43, implying a 42.5% probability.
  • NO (any other temperature): priced at 0.58, implying a 57.5% probability.

The NO side pays out whenever Busan’s July 6 high falls outside the 29°C bracket. That covers every other outcome: a 30°C reading driven by stronger-than-expected heat, a 28°C reading from cloud cover or onshore winds, or any extreme in either direction. In early July, Busan’s climate sits in the transitional zone between the late spring cool and the full monsoon heat of mid-July. The KMA’s historical Busan records show July daily highs typically ranging between 27°C and 32°C, which means the probability mass is genuinely spread across several adjacent brackets.

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Momentum and Market Signals

The momentum composite here is essentially flat. The one-hour price change is 0.0%, the trend score sits at 34.83, and 24-hour change data is unavailable since this market only opened today. There is no directional pressure visible in the price action. The market opened at 0.40 and has drifted up slightly to 0.43 — a modest move that likely reflects traders gravitating toward the most climatologically central bracket rather than any new weather data dropping.

Total volume is $3,226, and all of it came in the last 24 hours. Liquidity is $40,737, which is reasonably healthy for a micro-duration weather contract. That said, $3,226 in volume is well below the $1M threshold where price signals carry real conviction. This market can reprice sharply on a single large trade or a KMA forecast update. Thin volume means the current 43% figure reflects early positioning, not crowd wisdom.

  • The one-hour price change of 0.0% and trend score of 34.83 suggest no fresh catalyst has hit the market since open.
  • Volume of $3,226 is very thin — a single mid-sized bet can move this price meaningfully before July 6.
  • Liquidity at $40,737 is solid relative to volume, meaning the order book can absorb new trades without extreme slippage.
  • The bearish lean (57.5% NO) reflects the mechanical reality that any single temperature bracket in a ten-outcome market faces steep competition from adjacent outcomes.

Lines Analysis: Busan’s July Temperature Window

The 29°C bracket has a legitimate case. Early July in Busan sits right at the edge of the pre-monsoon period. The Korea Meteorological Administration’s Busan station historically records daily highs in the 28°C to 31°C range during the first week of July, with 29°C and 30°C being the two most common peak readings. If the synoptic pattern on July 6 features partial cloud cover, moderate southwest winds, and no heat dome extension from the continent, a 29°C high is well within reach. The 43% price is not unreasonable given that the 29°C bracket likely captures more probability than any single alternative.

What makes NO compelling is simple math. Even if 29°C is the single most likely outcome, it only needs to be wrong for NO to pay. A 30°C reading — the next bracket up — is plausible under slightly warmer conditions. A 28°C reading becomes likely if Busan gets maritime influence or early monsoon cloud. Either adjacent outcome flips this contract. The KMA 5-day forecast as of early July 2026 is the single most important data point traders should be watching. Any shift toward a 30°C or 31°C forecast for July 6 immediately deflates the 29°C contract.

  • The KMA Busan 5-day forecast update is the primary price mover. A forecast of 29°C to 30°C sustains the current pricing; a forecast firmly above 30°C deflates YES.
  • Monsoon onset timing matters. Early monsoon arrival over the Korean Peninsula typically brings cloud cover and suppressed highs, pushing outcomes toward the 27°C to 28°C range.
  • Continental heat surges from China can push Busan above 31°C in early July. Any such pattern emerging in NWP model runs would shift probability to higher brackets.
  • Actual KMA Busan station readings in the 48 hours before July 6 serve as a real-time calibration signal for the trajectory.

The $3,226 in total volume is too thin to treat the 43% figure as a strong crowd signal. What the data does support is that 29°C sits near the center of Busan’s early-July climatological distribution. The market is pricing uncertainty across a tight temperature window, not a directional weather call. The adjacent 30°C and 28°C brackets almost certainly absorb significant probability mass, and the true question is whether the July 6 pattern is warm or cool of the 29°C midpoint.

LINES VERDICT

THIN MARKET, WATCH THE FORECAST

The 29°C bracket is climatologically defensible, but a ten-outcome market with $3,226 in volume is pricing a weather distribution, not a conviction trade. The KMA forecast in the 48 hours before July 6 is the only data point that materially reprices this contract.

What the market says: At 42.5% implied probability, traders see 29°C as the most likely single outcome but not the probable one. With resolution on July 6 and volume this thin, a single forecast update or large trade can swing the price significantly before close.

Key unknown: The KMA Busan 5-day forecast update for July 6 is the decisive variable. A point forecast at 29°C sustains current pricing. Anything above 30°C or below 28°C shifts probability to adjacent brackets and collapses YES.

Scientific Context: Busan’s Early July Temperature Range

Busan sits on South Korea’s southeastern coast, where the Yellow Sea and Korea Strait moderate summer temperatures relative to inland cities. The Korean Meteorological Administration records show early July daily highs in Busan averaging near 28°C to 30°C, with the full monsoon season typically pushing more consistent heat into mid to late July. The specific date of July 6 falls in a transitional window where day-to-day variability is higher than in peak summer. That variability is exactly what makes a single-degree temperature market interesting and uncertain.

Frequently Asked Questions

It means traders believe there is roughly a 42.5% chance Busan's July 6 high lands exactly at 29°C. The remaining 57.5% is spread across ten other temperature brackets.

NO pays out if Busan's official peak temperature on July 6 is anything other than 29°C. A reading of 28°C or 30°C is enough to resolve the contract in NO's favor.

The Korean Meteorological Administration's Busan point forecast for July 6 is the primary price driver. A forecast shift to 30°C or 28°C would meaningfully reprice the 29°C bracket.

The market resolves at 12:00 UTC on July 6, 2026, based on the official peak temperature recorded at the KMA Busan station for that date.

Total volume is only $3,226, well below the $1M threshold for high conviction. The current 43% price reflects early positioning and can shift sharply on a single trade or forecast update.

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?

KMA Pins Forecast at Twenty-Nine

If the Korean Meteorological Administration's Busan forecast for July 6 settles at 29°C with high confidence, traders in adjacent brackets migrate toward the 29°C contract. Partial cloud cover and moderate southwest winds would support this reading, pushing YES toward 55% or higher in the final 24 hours before resolution.

Warm Pattern Pushes Toward Thirty

A continental heat surge from China or a weakening of the Korea Strait's maritime influence could push Busan's July 6 high to 30°C or 31°C. Any NWP model run showing that pattern would redirect probability mass to higher brackets and collapse the 29°C YES price toward 20% or below.

Early Monsoon Cloud Suppresses Highs

Early monsoon onset over the Korean Peninsula typically brings persistent cloud cover that caps daytime highs. If monsoon conditions arrive ahead of schedule, Busan's July 6 high could drop to 27°C or 28°C, pulling probability away from 29°C and benefiting lower-bracket contracts rather than the primary YES outcome.

A Single Large Trade Reprices Everything

With only $3,226 in total volume and a thin order book, one trader placing a few hundred dollars into an adjacent bracket can meaningfully shift the implied probability distribution across all temperature outcomes. This market is structurally vulnerable to individual position changes in a way that deep-volume markets are not.

Key macro factor: Early July sits in Busan's pre-monsoon transitional window, where synoptic variability is higher than in peak summer and day-to-day temperature swings of three to four degrees are climatologically normal.

Market Timeline

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