Home / Prediction Markets / Science / Qingdao June 28 Temperature: Will It Hit 31°C? Qingdao June 28 Temperature: Will It Hit 31°C? ☆ Watch Paper Bet View on Polymarket → Share SR Sofia Renard Climate & Science Analyst Embed NEW Embed this market Full Compact Copy Published June 26, 2026 6 min read Lines Verdict YES at 50% implied probability MARGINAL YES LEAN: Warm regional pattern gives YES a small edge, but Yellow Sea coastal suppression keeps NO fully competitive. Market probability: 52%. 50% Market Probability 1h +0.0% 24h +22.0% Trend Weak (45/100) Volume $10.0K $10.0K in 24h Liquidity $52.1K Moderate depth Time Left 1 day Resolves Jun 28 10K Vol. Jun 28, 2026 1H 6H 1D 1W 1M ALL Select lines to display 31°C or higher $4K Vol. 50% Buy Yes 49.5¢ Buy No 50.5¢ 30°C $736 Vol. 32% Buy Yes 31.5¢ Buy No 68.5¢ 29°C $436 Vol. 17% Buy Yes 17¢ Buy No 83¢ 28°C $576 Vol. 3% Buy Yes 3¢ Buy No 97¢ 27°C $478 Vol. 0% Buy Yes 0.5¢ Buy No 99.6¢ 26°C $569 Vol. 0% Buy Yes 0.3¢ Buy No 99.7¢ Two days before resolution, the Qingdao June 28 temperature market sits at almost exactly even odds. The 31°C-or-higher outcome carries a 52% implied probability, meaning traders see this as a genuine toss-up. Here’s what the measurements are telling us: the market is not pricing settled science. It’s pricing real meteorological uncertainty in a coastal city where sea breezes and inland heat compete daily in late June. The market question asks whether Qingdao’s highest temperature on June 28 will reach 31°C or above. YES trades at $0.52, NO trades at $0.48. The market resolves June 28, 2026 at 12:00 UTC. Total volume stands at $7,700, all of it placed in the last 24 hours. How the Qingdao 31°C Temperature Contract Works YES pays out if the official daily maximum temperature recorded in Qingdao on June 28 reaches 31°C or higher. NO pays out if the peak stays at 30°C or below. The contract resolves based on market resolution sources, which track official meteorological station data for Qingdao, a coastal city in Shandong Province on China’s Yellow Sea coast. YES ($0.52, 52% implied): Qingdao records a daily high of 31°C or above on June 28.NO ($0.48, 48% implied): Qingdao’s daily high tops out at 30°C or cooler on June 28. The NO side closes the gap when sea breeze activity off the Yellow Sea suppresses afternoon temperatures. Qingdao’s coastal geography means onshore flow can cap highs even when inland Shandong cities bake. A persistent marine influence on June 28 keeps temperatures in the 28–30°C range, and NO pays out. The threshold of 31°C is narrow enough that a single degree of forecast error flips the outcome. Sponsored Partner Momentum and Market Signals The momentum composite here is straightforward: price moved sharply upward on June 26, rising roughly 86% from the market open price before settling near current levels. The 1-hour change is flat at 0.0%, and 24-hour data is not yet available given the market’s recent launch. The driver is almost certainly fresh numerical weather prediction model output showing Qingdao temperatures trending warmer for June 28 specifically. Total volume is $7,700, all recorded in the last 24 hours. Liquidity sits at $32,669, which is healthy relative to volume. Because total volume is well below $1 million, this market can reprice sharply on a single new data point, whether that’s an updated forecast model run, a change in regional pressure patterns, or a shift in the sea breeze forecast. Thin volume amplifies price sensitivity here. The 1-hour price change is flat (0.0%), indicating the market has stabilized after yesterday’s sharp upward move.The 24-hour swing from $0.28 to current $0.52 reflects a significant recalibration, likely tied to updated weather model forecasts.Trend score of 52.02 is essentially neutral, consistent with the near-even YES/NO split.Liquidity of $32,669 relative to $7,700 volume suggests patient market makers are holding positions without aggressive repositioning.No whale trades are on record, so directional conviction from large players is absent. Lines Analysis: Qingdao’s Coastal Temperature Dynamics The data doesn’t care about the politics, and in this market there is no politics. What matters is whether the Yellow Sea marine layer cooperates on June 28. Late June in Qingdao typically sees daily highs ranging from the upper 20s to the low 30s Celsius. The city averages roughly 8–10 days in June where temperatures reach 31°C or above, meaning the base rate alone puts the probability somewhere near or slightly below 50%. The current 52% YES price is a modest lean toward the warm outcome, consistent with short-range forecast models pointing to above-normal temperatures for Shandong Province in the June 27–29 window. What makes the NO outcome genuinely competitive is Qingdao’s exposure to the Yellow Sea. Even on warm regional days, a sea breeze developing in the early afternoon can hold the official station temperature at 29–30°C while inland stations record 33–35°C. This coastal cap is not rare. It is a defining feature of Qingdao’s climate and the primary reason this market is not pricing 70% or 80% YES despite a broader warm pattern. The 31°C threshold sits right at the inflection point where marine influence either holds or breaks. China Meteorological Administration forecasts for Qingdao on June 28 will be the single most important price driver in the next 48 hours.Any model shift showing increased southwesterly flow over Shandong would suppress sea breeze development and push YES probability higher.A stronger high-pressure ridge over the Yellow Sea maintaining onshore flow would firm up the NO case.Updated 00z and 12z model runs on June 27 will be the last major data before resolution.No large-scale weather events (typhoons, cold fronts) appear to be in play for this specific window. The $7,700 in total volume reflects genuine uncertainty, not settled conviction. The data favors a slight lean toward YES based on regional warm anomalies, but the coastal suppression risk makes this a real 52/48 market. The market is pricing uncertainty, not science, and that’s exactly right here. LINES VERDICT MARGINAL YES LEAN, GENUINELY UNCERTAIN The warm regional pattern gives YES a small edge, but Qingdao’s Yellow Sea exposure keeps NO fully live. This market resolves on a single number, and the threshold sits at the exact inflection point of coastal meteorology. What the market says: At 52% implied probability, the market calls this essentially a coin flip with a slight tilt toward the warm outcome. Thin volume below $1 million means a single forecast update in the next 48 hours could swing the price five to ten points in either direction before the June 28 resolution deadline. Key unknown: The China Meteorological Administration’s June 27 forecast update for Qingdao, specifically whether sea breeze activity is projected to develop and at what time on June 28, is the single data point that would reprice this contract most sharply. Frequently Asked QuestionsWhat does 52% probability mean for this Qingdao temperature market?A 52% implied probability means traders collectively see the 31°C-or-higher outcome as slightly more likely than not. It reflects genuine meteorological uncertainty, not a strong directional lean.What happens if Qingdao's temperature stays at 30°C on June 28?If the official daily maximum in Qingdao stays at 30°C or below, the NO outcome pays out. The 30°C, 29°C, 28°C, and lower brackets each represent separate contract outcomes.What data or event would move this market price before resolution?Updated China Meteorological Administration forecast models on June 27 are the primary price driver. Any shift in sea breeze projections or regional pressure patterns for Shandong Province would reprice this contract.When does this market resolve?The Qingdao temperature market resolves June 28, 2026 at 12:00 UTC, based on official meteorological station data for Qingdao's daily maximum temperature.Is the $7,700 in volume enough to trust this market's price?Volume below $1 million means thin liquidity. The $0.52 YES price reflects current trader sentiment but can shift five to ten percentage points on a single new forecast update in the next 48 hours.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? Inland Heat Dominates A strengthening southwesterly flow pushes warm continental air across Shandong Province on June 28. Sea breeze development fails to materialize before the afternoon peak. Qingdao's official station records 31°C or above, YES pays out, and the probability pushes toward 70% or higher as June 27 models confirm the pattern. Yellow Sea Breeze Caps the High A persistent onshore flow from the Yellow Sea develops by mid-morning on June 28. Marine air holds Qingdao's official station temperature at 29–30°C even as inland Shandong cities record 33–35°C. The coastal cap holds, NO pays out, and YES probability collapses toward 20–30% on updated June 27 model runs. NO Firms as Models Shift Cooler The June 27 China Meteorological Administration forecast update shows a ridge strengthening over the Yellow Sea, enhancing onshore flow. Model consensus shifts toward a 29–30°C peak. Traders reprice NO from 48% toward 60–65%, reflecting the updated meteorological picture for Qingdao's coastal station specifically. Late Afternoon Cloud Cover Changes Everything An unexpected shallow convective cloud deck develops over coastal Shandong by early afternoon on June 28, cutting solar heating before the daily maximum is recorded. The official high stalls at 30°C despite favorable synoptic conditions for warmth. This scenario is unforecast but consistent with summertime coastal convection in the Yellow Sea region. Key macro factor: Shandong Province is experiencing above-normal temperatures in late June 2026, consistent with the broader East Asian summer heat pattern, but Qingdao's Yellow Sea exposure isolates it from the most extreme inland readings. Market Timeline 4:03 AM Market Created 4:04 AM Market Opened Sunday, Jun 28 Market Resolution Place paper bet No real money × Highest temperature in Qingdao on June 28? Outcome 31°C or higher · 50% 30°C · 32% 29°C · 17% 28°C · 3% 27°C · 0% 26°C · 0% 24°C · 0% 25°C · 0% 22°C · 0% 23°C · 0% 21°C or below · 0% YES $0.50 NO $0.51 Stake (USD) $100 $500 $1,000 $5,000 Pick a market to see how many shares you would hold. Related Prediction Markets Moving Now Lowest temperature in Seoul on June 27? 20°C 99% Yes No 19°C 1% Yes No Moving Now Lowest temperature in Shanghai on June 27? 21°C 97% Yes No 20°C 2% Yes No Moving Now Highest temperature in Seoul on June 27? 28°C 94% Yes No 29°C 4% Yes No Moving Now Lowest temperature in Paris on June 27? 21°C 96% Yes No 20°C or below 7% Yes No Moving Now Measles cases in U.S. by June 30? 2150 2% Yes No 2140 1% Yes No Moving Now Highest temperature in Tokyo on June 27? 23°C 87% Yes No 24°C 10% Yes No Moving Now Highest temperature in Shanghai on June 27? 27°C 84% Yes No 28°C 11% Yes No Moving Now Highest temperature in Qingdao on June 27? 32°C or higher 100% Yes No 23°C 0% Yes No Moving Now Lowest temperature in Tokyo on June 27? 22°C 87% Yes No 21°C 19% Yes No Loading... Volume Liquidity Ends Outcomes Description Resolution Rules View on Market Comments Loading comments…