Highest temperature in Shanghai on August 5?

Platform comparison

Market context

Polymarket is pricing this Shanghai airport temperature contract at **0% YES**, so the market currently assigns essentially no probability to a specific outcome being correct on the board. Because the market settles in USDC on Polygon through conditional tokens, the practical question for traders is not whether Shanghai is warm in August, but which exact Celsius band the Shanghai Pudong International Airport Station ends up recording as the day’s high.

On comparable August climatology, Shanghai usually sits in the low-to-mid 30s Celsius, with August averages around 32°C or 90°F and forecast ranges this year commonly clustering between 31°C and 35°C. AccuWeather’s August outlook for Shanghai shows daily highs from 82°F to 92°F, while other seasonal guides point to typical highs near 31–32°C, which helps explain why outcome buckets around 33°C and 34°C tend to attract attention in this type of market.[1][4][10] For a hands-on Polymarket user, that means the live price is best read as a distribution over a hot but still weather-sensitive day, where a small shift in cloud cover or shower timing can move the recorded maximum by a degree.

The main catalysts are the intraday weather evolution at Pudong, not general city-wide conditions: afternoon sunshine can lift the high, while showers, thunderstorms or persistent cloud can cap it. Recent forecast pages for 5 August point to hot, humid conditions with temperatures around 34°C and at least some thunderstorm or patchy-rain risk, which is the kind of setup that can compress the final result into a narrow band near the forecast peak.[2][3][11] Because settlement uses the highest temperature recorded for that station on the day, traders usually watch the late-morning through mid-afternoon run-up, then check whether the Wunderground history page confirms the final maximum before the next day’s first datapoint appears.[9]

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 PolyGram, which mirrors the Polymarket order book directly.

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

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'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 PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.