Highest temperature in Qingdao on July 7?

Platform comparison

Market context

On 7 July 2026, the Qingdao Jiaodong International Airport Station will record its peak temperature for the day, a real-world event that determines the settlement of this prediction market. Historical data frames this as a classic underdog scenario: July in Qingdao is consistently warm and breezy, with average highs of 29°C (83°F) and lows rarely dipping below 23°C [1]. Daily highs typically climb from 78°F to 83°F, seldom falling below 71°F or exceeding 89°F [3]. The city’s hottest recorded day hit 33.1°C in August 2018, suggesting that temperatures in the 30–33°C range are plausible for mid-summer [4]. Given this baseline, the crowd-implied probability of 0% for the YES outcome appears to be a severe mispricing, likely reflecting a consensus that the temperature will fall outside the specific range being bet on, rather than an actual impossibility of heat.

The value spot sits where the contrarian trader ignores the 0% line and bets on the likelihood of a warm day, as the consensus is overly dismissive of Qingdao’s summer heat potential. Traders should monitor the daily weather forecast schedules and any sudden shifts in wind patterns or precipitation, as July is the wettest month with a 34% chance of rain on an average day [1]. While no specific recent announcement dictates the temperature, the dependency on clear skies for peak heating is critical; a rainy day could suppress highs significantly. The settlement relies on Wunderground data for the highest temperature recorded at all times on this day [7], meaning even a brief heat spike could trigger the outcome. With the settlement window ending 2026-07-07T12:00:00Z, the market offers a distinct opportunity to capitalise on the statistical probability of a 29°C+ day, which the current 0% pricing fails to acknowledge.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Qingdao on July 7? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Who Will Win, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Who Will Win. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.