Highest temperature in Chongqing on July 27?

Platform comparison

Market context

Polymarket is pricing the Chongqing temperature contract with **0% YES** on the crowd-implied basis, even though the market itself is still open and settles against the highest reading at Chongqing Jiangbei International Airport on 27 July 2026. In practice, traders are holding USDC on Polygon and expressing views through conditional tokens tied to the final Celsius band, so the relevant question is not whether Chongqing is hot in general, but whether the airport station posts a daily maximum inside the specific settlement range.

For historical framing, July in Chongqing is typically **very hot and humid**, with average highs around **33°C** and frequent rain; travel guidance also describes July as part of the city’s rainy season, with most annual rainfall concentrated between May and September.[1][2] That backdrop helps explain why the market is spread across higher temperature bins rather than clustered near moderate readings, and why a 0% print can still be misleading if it reflects temporary pricing distortions rather than the underlying weather profile. Chongqing’s summer is often oppressive rather than stable, which makes the exact daily peak at the airport a more delicate target than the citywide “feels like” temperature.[1][4]

The main catalysts today are the actual **weather progression through the afternoon** and any rain, thunderstorm, or cloud cover changes that suppress the peak reading before the settlement window closes. Travel guidance notes that July in Chongqing often brings **light to moderate rain with occasional heavy thunderstorms**, so traders should watch live radar, airport observations, and any forecast updates from the local meteorological service rather than rely on broad monthly averages.[1][2] Because the contract resolves from Wunderground’s daily history for the airport station, the only decisive input is the station’s final maximum temperature, not downtown conditions or headline city forecasts.

Sources: 1 · 2 · 3 · 4

Methodology

We track Highest temperature in Chongqing on July 27? 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 Scam?. 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.

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.

Do I need to KYC for this market?

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