Pronóstico: Highest temperature in Qingdao on July 7?

Platform comparison

Market context

The underlying real-world event is the highest temperature recorded on 7 July 2026 at Qingdao Jiaodong International Airport, measured in degrees Celsius. On Polymarket today, the contract for a temperature above 31°C trades at 0% YES, implying the crowd believes the peak will stay firmly below that threshold. This pricing reflects the on-chain mechanics of conditional tokens on Polygon, where USDC liquidity flows into the NO side, pushing the implied probability of a hot day to near zero.

Historical data frames this 0% probability as plausible, given Qingdao’s typical July climate. Average highs in July reach 29°C (83°F), with breezy conditions moderating extremes [6]. The city’s hottest recorded day hit 33.1°C in August 2018, but July peaks rarely exceed 31°C, with most days clustering around 28–30°C [4]. Simulated hourly records since 1940 show consistent moderation, suggesting a 31°C+ day is statistically uncommon for this date [2].

Traders should monitor the daily weather forecast from Wunderground, the official resolution source, as it updates hourly [7]. A key catalyst is the Shandong Provincial Meteorological Bureau’s weekly extreme weather bulletin, which recently flagged a potential heatwave for mid-July in northern China, though Qingdao remains coastal and buffered [5]. Dependencies include the timing of the next monsoon trough; if it stalls south of the Yellow Sea, temperatures could spike, but current models show no such disruption. Watch the 72-hour forecast for any sudden shifts in wind direction or cloud cover that might alter the peak.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Qué Es, which mirrors the Polymarket order book directly.

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

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 Polymarket Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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'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.

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.