Highest temperature in Shanghai on July 15?

Platform comparison

Market context

Shanghai’s highest temperature on 15 July 2026 will be recorded at the Pudong International Airport station, with the market resolving to the Celsius range containing that peak. The settlement hinges on a single day’s maximum, sourced from Wunderground’s historical daily data for ZSPD, and the current 0% YES probability for any specific outcome reflects the market’s early-stage uncertainty rather than a definitive forecast.

Historically, mid-July in Shanghai sees daily maxima typically between 35°C and 39°C, with 38°C being the most frequent peak in recent years. Current forecasts for the airport show a maximum of 35°C today, but heavy precipitation is expected Friday, which could suppress temperatures slightly. The crowd-implied 66% probability for 38°C and 17% for 39°C suggests traders are anchoring to the historical median, not the current overcast conditions showing 28°C minimums and broken clouds [2][5].

Traders should monitor the 15 July 00:00–24:00 UTC temperature log from Wunderground, watching for any sudden heat spikes driven by reduced cloud cover or wind shifts. The key dependency is the absence of prolonged rain, as the forecast for heavy precipitation (>0.8") on Friday could lower the peak if it persists into the settlement window [3]. Programmatically, a bot would poll the Wunderground API hourly, flagging deviations above 37°C to adjust conditional orders before the 2026-07-15T12:00:00Z cutoff.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Highest temperature in Shanghai on July 15? 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

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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 Bot UK. 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.

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.

Do I need to KYC for this market?

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