Home / Prediction Markets / Science / Hong Kong Peak Temp on July 13: Market Locks In at 33°C Hong Kong Peak Temp on July 13: Market Locks In at 33°C ☆ Watch Paper Trade View on Polymarket → Share SR Sofia Renard Climate & Science Analyst Embed NEW Embed this market Full Compact Copy Published July 13, 2026 6 min read Resolution Verdict YES Market Resolved Market has ended. Final implied probability: 100%. Resolved Volume $196.8K $165.2K in 24h Liquidity $116.0K Deep liquidity Time Left Ended Resolves Jul 13 197K Vol. Ended 1H 6H 1D 1W 1M ALL Select lines to display 33°C $46K Vol. 100% Yes 99.9¢ No 0.1¢ 34°C $40K Vol. 0% Yes 0.1¢ No 99.9¢ 27°C or below $1K Vol. 0% Yes 0.1¢ No 100¢ 28°C $2K Vol. 0% Yes 0.1¢ No 100¢ 29°C $5K Vol. 0% Yes 0.1¢ No 100¢ 30°C $6K Vol. 0% Yes 0.1¢ No 100¢ The market has already made its call. With a 98.5% implied probability, traders have essentially closed the book on Hong Kong’s highest temperature on July 13, 2026, landing squarely on 33°C. A price surge of 61.5% over the past 24 hours and a further 28.5% jump in the last hour tell a single story: real-time weather data confirmed the call, and the market followed fast. The market question asks which temperature bracket captures Hong Kong’s peak reading on July 13, 2026. The 33°C outcome trades at $0.98 YES and $0.02 NO. The contract resolves at 12:00 UTC+8 on July 13, 2026. Total volume sits at $132,695, with $125,525 of that flowing in over the last 24 hours alone. How the 33°C Contract Works for Hong Kong YES pays out if Hong Kong’s highest recorded temperature on July 13 falls in the 33°C bracket, as determined by official meteorological data used for market resolution. NO pays out if the peak reading lands in any other bracket, from 27°C or below all the way up to 37°C or higher. Ten alternative outcomes are on the board. 33°C (YES): $0.98 per share, 98.5% implied probability.All other brackets (NO): $0.02 per share, 1.5% implied probability. For NO to pay, Hong Kong’s official peak temperature would need to miss 33°C entirely. That means the actual high either stays at 32°C or drops lower, or it pushes through to 34°C or above. Given that the price surged to $0.98 this morning, the market is treating a miss as a near-statistical impossibility. Here’s what the measurements are telling us: the data has arrived, and it confirmed the bracket. Momentum and Market Signals Sponsored Partner The momentum composite here is unusually clean. A trend score of 87.41, paired with a 61.5% 24-hour price move and a 28.5% one-hour move, points to a single driver: live temperature data from Hong Kong crossed or confirmed the 33°C threshold during the trading day, triggering a rapid repricing from the market open level toward certainty. This is not speculative momentum. This is the market reacting to observed reality. Total volume of $132,695 is modest in absolute terms, with $125,525 arriving in the last 24 hours. Liquidity stands at $128,350. Because total volume is below $1 million, this market can move sharply on even small new data inputs. The concentration of volume in a single day confirms that traders entered once the meteorological picture became clear, not before. The market is pricing observed science, not forecasted uncertainty. The 61.5% 24-hour price surge and 28.5% one-hour gain reflect a market responding to confirmed temperature data, not speculation.Volume of $125,525 in 24 hours versus a $132,695 total shows the market was essentially dormant until actual readings emerged.Liquidity at $128,350 is sufficient for current price levels but thin enough that a surprise reading shift could move the price meaningfully before the 12:00 resolution cutoff.The 33°C outcome opened near $0.33 and now trades at $0.98, a near-complete compression of uncertainty as real-world data arrived.Competing brackets including 34°C and 32°C now trade at near-zero, reflecting market consensus that 33°C is the confirmed high. Lines Analysis: What the Data Is Saying The Hong Kong Observatory measures temperature continuously throughout the day, and the July 13 reading appears to have confirmed a 33°C peak during the market’s active trading window. The data doesn’t care about the politics, or in this case, the forecast uncertainty that had this contract opening below $0.35. When actual measurements align with a single bracket, the market moves to price that bracket near certainty, which is exactly what happened here. For any bracket other than 33°C to resolve, the official final peak temperature for the full July 13 period would need to differ from what current readings indicate. A late-afternoon temperature surge pushing Hong Kong past 34°C remains the primary risk for YES holders, though the market assigns that only a 1.5% probability. A sudden cooling event, which would be unusual in July for Hong Kong, would push the reading toward 32°C or lower and also void the 33°C resolution. The Hong Kong Observatory’s official daily maximum reading, confirmed at resolution time, is the single determinative data point for this contract.Any temperature shift after 12:00 local time does not affect resolution, which caps the remaining uncertainty window.July temperature climatology for Hong Kong centers around 31°C to 33°C, making 33°C a historically plausible peak for this date.Afternoon thunderstorm activity is the most realistic scenario that could pull the peak below 33°C before resolution locks in. Total volume of $132,695 reflects a market that traded thin for most of its life and then concentrated activity the moment real data arrived. The data favors YES at 98.5%. The market is pricing observed science, not speculation. LINES VERDICT NEAR-CERTAIN RESOLUTION AT THIRTY-THREE DEGREES The Hong Kong temperature market has done what well-functioning prediction markets do: it repriced rapidly once real-world measurements confirmed the bracket. The 33°C outcome now reflects observed data, not forecasted probability. What the market says: A 98.5% implied probability means traders are treating this contract as effectively resolved. With the resolution window closing at 12:00 on July 13, 2026, minimal time remains for any new data to shift the price. Key unknown: The single remaining risk is whether the Hong Kong Observatory’s official daily maximum, confirmed at resolution, differs from current intraday readings due to a late-session temperature spike or measurement revision. Frequently Asked QuestionsWhat does a 98.5% probability mean for the 33°C outcome?It means traders assign roughly a 1-in-67 chance that the official Hong Kong daily maximum on July 13 lands in any bracket other than 33°C. The market treats this as near-certain based on current intraday readings.What does the NO contract pay out on?NO pays if Hong Kong's official peak temperature on July 13 falls in any bracket other than 33°C, including 32°C, 34°C, or any other listed outcome. Currently priced at $0.02, it carries a 1.5% implied probability.What data event would move the price before resolution?A confirmed temperature reading above 33°C or a sudden cooling event pushing the peak below 33°C would reprice competing brackets. The Hong Kong Observatory's intraday updates are the key data source.When does this market resolve?The contract resolves at 12:00 on July 13, 2026. After that cutoff, no new temperature readings affect the outcome, and the official daily maximum from the resolution source determines the result.Is the total volume of $132,695 enough to make the price reliable?Volume below $1 million means thin liquidity. The $128,350 in current liquidity is sufficient for existing prices but a small unexpected data shift could still move the price sharply before the 12:00 resolution cutoff.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 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? Confirmed Reading Holds Through Resolution The Hong Kong Observatory's official daily maximum locks in at 33°C, matching current intraday data. No late-afternoon temperature spike pushes the reading into the 34°C bracket. The contract resolves YES at $1.00, paying out 33°C holders at near-full value. The market closes exactly as priced. Late Afternoon Spike Pushes Past 34°C An unexpected afternoon heat surge drives Hong Kong's official peak above 33°C before the 12:00 resolution cutoff. The 34°C bracket reprices sharply upward, and the 33°C outcome collapses from $0.98 toward zero. With thin volume below $1 million, the price move would be swift and severe. Thunderstorm Cooling Pulls Peak Below 33°C An afternoon thunderstorm typical of Hong Kong's summer pattern causes a rapid temperature drop before the official daily maximum is set. The peak locks in at 32°C or lower, invalidating the 33°C outcome. The 32°C bracket would absorb the repricing, and NO holders would be the only winners. Data Revision Changes the Official Reading The resolution source applies a measurement correction or methodology adjustment that shifts the reported daily maximum out of the 33°C bracket. While rare for meteorological data, official post-processing can alter intraday readings. Even a 0.5°C revision could change the resolution outcome entirely in a market with no half-degree brackets. Key macro factor: July is Hong Kong's hottest and most humid month, with typical daily maxima between 31°C and 34°C, making the 33°C bracket the statistically modal outcome for mid-July dates. Market Timeline Jul 11, 4:02 AM Market Created Jul 11, 4:03 AM Market Opened 12:00 PM Market Resolution Place paper trade No real money × Highest temperature in Hong Kong on July 13? Outcome 33°C · 100% 34°C · 0% 27°C or below · 0% 28°C · 0% 29°C · 0% 30°C · 0% 31°C · 0% 32°C · 0% 35°C · 0% 36°C · 0% 37°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. Related Prediction Markets Moving Now Highest temperature in San Francisco on July 13? 76-77°F 100% Yes No 78-79°F 1% Yes No Read Article Moving Now Highest temperature in Hong Kong on July 13? 33°C 100% Yes No 34°C 0% Yes No Read Article Moving Now FDA approves Viatris' low-dose estrogen weekly patch? 57% chance Yes No Read Article Moving Now Min Arctic sea ice extent this summer? <4m sq km 19% Yes No 4.2-4.4m sq km 19% Yes No Read Article Moving Now July 2026 Temperature Increase (ºC) 1.20–1.24ºC 60% Yes No 1.15–1.19ºC 28% Yes No Read Article Moving Now Who will win the 2026 Fields Medal? John Pardon 98% Yes No Jacob Tsimerman 98% Yes No Read Article What caused the Blue Origin New Glenn Explosion? 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