Home / Prediction Markets / Science / Busan June 19 High Temperature Market Locks In at 28°C Busan June 19 High Temperature Market Locks In at 28°C ☆ Watch Paper Bet View on Polymarket → Share SR Sofia Renard Climate & Science Analyst Embed NEW Embed this market Full Compact Copy Published June 19, 2026 6 min read Lines Verdict YES at 100% implied probability MARKET CONCLUDED: The 63-point single-day repricing reflects observed temperature data confirming 28°C as Busan's June 19 high. Market probability: 99.6%. 100% Market Probability 1h +4.1% 24h +69.1% Trend Moderate (69/100) Volume $33.8K $29.1K in 24h Liquidity $96.6K Moderate depth Time Left 10 hours Resolves Jun 19 34K Vol. Jun 19, 2026 1H 6H 1D 1W 1M ALL Select lines to display 28°C $5K Vol. 100% Buy Yes 99.6¢ Buy No 0.4¢ 29°C $5K Vol. 0% Buy Yes 0.5¢ Buy No 99.6¢ 30°C $2K Vol. 0% Buy Yes 0.2¢ Buy No 99.8¢ 31°C $2K Vol. 0% Buy Yes 0.1¢ Buy No 99.9¢ 32°C $1K Vol. 0% Buy Yes 0.1¢ Buy No 99.9¢ 23°C or below $1K Vol. 0% Buy Yes 0.1¢ Buy No 100¢ The market has already priced this as settled. Busan’s highest temperature on June 19 resolves at 28°C, and the contract pricing reflects near-total certainty. The implied probability sits at 99.6%. That kind of consensus doesn’t emerge from speculation. It emerges when real-world temperature data lands before the resolution window closes. This contract asks: what is the highest temperature recorded in Busan on June 19? The 28°C outcome trades at 1.00. The NO side trades at 0.00. The market closes at 2026-06-19 12:00:00. Total volume across all outcomes stands at $33,805, with $29,141 of that trading in the last 24 hours. How the Busan June 19 Temperature Contract Works YES pays out if the highest recorded temperature in Busan on June 19 reaches exactly 28°C, as determined by the market’s resolution source. NO covers all other outcomes: 23°C or below, 24°C, 25°C, 26°C, 27°C, 29°C, 30°C, 31°C, 32°C, or 33°C and higher. This is a multi-outcome temperature market, so each degree bracket is its own contract. YES (28°C outcome) trades at 1.00, implying a 99.6% probability of resolution at that temperature.NO trades at 0.00, implying a 0.4% probability that Busan peaks at any other value. The NO side would pay out only if Busan’s verified high temperature on June 19 lands in any bracket other than 28°C. A warmer afternoon push to 29°C, a cooler-than-expected marine layer holding the peak at 27°C, or a data discrepancy in the resolution source would all move this contract against the current 99.6% consensus. At 0.00, the market has essentially written off that possibility. Sponsored Partner Momentum and Market Signals After a Sixty-Three Percent Surge The momentum composite here is dramatic. The 28°C contract gained 63.0% in the last 24 hours, with a trend score of 64.08 and no hourly movement in the most recent hour. That pattern means the repricing already happened. Temperature data for Busan on June 19 appears to have reached the market, and traders responded immediately by concentrating capital in the 28°C bracket. Total volume sits at $33,805. The 24-hour volume of $29,141 represents 86% of all trading, which confirms this is a late-breaking information event, not a slow-building consensus. Liquidity stands at $96,556, which is notably high relative to total volume. That depth means the price is stable and resistant to further movement from small orders. The 99.6% level is effectively a floor until resolution. The 24-hour price gain of +63.0% combined with a 64.08 trend score reflects observed temperature data entering the market, not a shift in probabilistic modeling.Liquidity of $96,556 against $33,805 in total volume means the order book is deep and the price is unlikely to move before the 12:00 resolution.The 0.4% residual NO probability reflects rounding and thin opposing positions, not genuine uncertainty about the outcome.Trader sentiment registers as strongly bullish at 99.6% YES, with 0.4% holding NO across all other temperature brackets. Lines Analysis: What the Busan Temperature Data Is Telling Us Here’s what the measurements are telling us. The 63-point gain in a single 24-hour window on a temperature market is a data signal, not a sentiment signal. When a localized weather contract reprices that sharply and then flatlines, it means observed readings have landed. Busan’s meteorological conditions on June 19 appear to have produced a peak of 28°C, and the market has already absorbed that information. What makes NO real at this stage is a data correction or resolution dispute. The 0.4% residual could represent a trader who believes the resolution source will report a different value, perhaps rounding to 27°C or 29°C depending on measurement methodology. That scenario is genuinely unlikely, but it is the only path remaining. A technical discrepancy between measurement stations or a different reporting convention in the resolution source is the single remaining variable. Any official temperature report showing Busan peaked above or below 28°C before 12:00 resolution would immediately collapse the YES price.Confirmation from the resolution source that 28°C is the verified daily high would push the price to 1.00 at close.A delay in resolution data publication would hold the 99.6% price stable until confirmation arrives.Any unexpected late-afternoon temperature reading that breaches a different bracket would reprice this contract sharply in its final window. Total volume of $33,805 is modest for a weather contract, but the $96,556 liquidity tells the more important story. This market has enough depth to absorb new information without dramatic slippage. The data strongly favors the 28°C outcome. The only remaining question is whether the resolution source confirms what the order book already believes. LINES VERDICT MARKET CONCLUDED The 63-point single-day surge to 99.6% reflects observed temperature data, not forecasting. The market has already decided this one. What the market says: At 99.6% implied probability, the 28°C outcome is as close to certain as prediction markets get. The resolution window closes at 12:00 on June 19. Any final volatility in the remaining window would require a data reversal, not a weather event. Key unknown: The single most important remaining variable is whether the designated resolution source confirms 28°C as the official daily high for Busan on June 19 before the 12:00 close. Frequently Asked QuestionsWhat does 99.6% probability mean for the Busan temperature market?It means traders are pricing a 99.6% chance that 28°C is Busan's verified high on June 19. At that level, the market treats the outcome as effectively decided, leaving only 0.4% for any other temperature bracket.How does the NO side of this contract pay out?NO pays out if the official resolution source records any temperature other than 28°C as Busan's June 19 high. That includes any bracket from 23°C or below all the way to 33°C or higher.What data event would reprice this contract before resolution?A corrected temperature reading or a different value from the resolution source would immediately shift the price. The 63-point surge suggests observed data already entered the market.When does this contract resolve?The market closes at 12:00 on June 19, 2026. Resolution depends on the designated source confirming Busan's official daily high temperature for that date.Is the $33,805 in total volume enough to trust this market's price?Volume is modest, but liquidity stands at $96,556, which is nearly three times total volume. That depth makes the 99.6% price stable and difficult to move with small opposing orders.How is the Smart Money Index calculated?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.What is a convergence signal?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.Is Lines a market operator?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. What Could Shift These Probabilities? Resolution Confirms 28°C The designated resolution source publishes Busan's official June 19 daily high as 28°C before the 12:00 close. The YES contract settles at 1.00. Traders who entered during the 63-point surge lock in gains. The market closes without further movement. Resolution Source Reports a Different Value The resolution source records Busan's peak at 27°C or 29°C due to measurement rounding or station discrepancy. The 28°C YES contract collapses to near zero. The corresponding bracket reprices to near certainty. This is the 0.4% scenario the market has already priced. Late Afternoon Temperature Pushes Into a New Bracket If the resolution window captures an afternoon reading above 28°C, the 29°C or 30°C brackets could reprice sharply. This requires the resolution methodology to include readings after the initial data that drove the current 99.6% consensus. A boundary case on a warm June afternoon. Resolution Data Delayed or Disputed If the resolution source fails to publish before the 12:00 deadline, or if two official sources report different peak values for Busan on June 19, the contract could face a delayed or contested resolution. The data doesn't care about the politics, but methodology disputes can create unexpected pricing gaps. Key macro factor: Busan's June temperature regime is influenced by the East Asian monsoon onset and marine air from the Korea Strait, which typically caps afternoon highs in the upper 20s during mid-June before the full monsoon arrives. Market Timeline Jun 17, 4:03 AM Market Created Jun 17, 7:51 AM Event Start Jun 17, 9:24 AM Market Opened 12:00 PM Market Resolution Place paper bet No real money × Highest temperature in Busan on June 19? Outcome 28°C · 100% 29°C · 0% 30°C · 0% 31°C · 0% 32°C · 0% 23°C or below · 0% 24°C · 0% 25°C · 0% 26°C · 0% 27°C · 0% 33°C or higher · 0% YES $1.00 NO $0.00 Stake (USD) $100 $500 $1,000 $5,000 Pick a market to see how many shares you would hold. 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