Highest temperature in Qingdao on June 29?

Platform comparison

Market context

On 29 June 2026, the highest temperature recorded at Qingdao Jiaodong International Airport will determine the outcome of this prediction market, with the crowd currently assigning only a 1% chance that the temperature reaches the upper threshold in question. Historically, June in Qingdao is solidly warm but rarely extreme; average daily highs sit around 25–26°C, with mid-month peaks typically reaching 28–29°C. The city’s hottest day on record hit 33.1°C in August 2018, not June, suggesting that a June spike to 30°C or above is an outlier event. This 1% implied probability aligns with the underdog status of the “YES” outcome, as consensus firmly expects temperatures to remain below the critical range.

The value spot for contrarian traders may lie in monitoring sudden shifts in regional weather patterns, particularly the approach of a subtropical ridge or an unexpected heatwave from inland Shandong. Recent forecasts from AccuWeather indicate June 2026 highs between 26–29°C, with no immediate signal of extreme heat. However, traders should watch for announcements from the China Meteorological Administration regarding monsoon activity or dry air intrusions, which could amplify temperatures. A contrarian angle would be to assess whether the market has underpriced the risk of a rare, short-lived heat spike, especially if atmospheric conditions align with historical August extremes. The settlement window closes at 12:00 UTC on 29 June, leaving little time for late corrections.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Highest temperature in Qingdao on June 29? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.