Highest temperature in Shenzhen on August 2?

Platform comparison

Market context

Shenzhen Bao’an International Airport’s afternoon peak on 2 August will be judged against a city climate that is usually very hot, humid and rain-prone, with August highs typically around 31–32°C and monthly records in the high 30s°C or low 40s°C depending on the dataset. Historical summaries put Shenzhen’s August average high at roughly 89–90°F, with record highs reported between 100°F and 104°F, which means the current **0% YES** implies the market is effectively pricing out an unusually hot day rather than a routine summer outcome.[1][4][6][7][9][11]

That makes this contract more useful as a test of how much traders discount the top end of the distribution than as a simple seasonal call. On comparable August days, the city can still spike into the mid-30s°C, and one source gives 2 August an average high near 91°F, but airport-specific readings are often a little lower than broader city averages because of local exposure, cloud cover and sea-breeze effects.[3][4][10][17] In cross-platform terms, prediction-market pricing at zero is notably harsher than the climatological baseline implied by weather reference sites, while sportsbook-style weather lines, where available, typically cluster around broad bands rather than a precise daily maximum, so any divergence usually reflects how each venue handles the tail risk of a one-off heat spike.

The key trader catalysts are the morning evolution of the Shenzhen forecast, convective rain risk, and whether a hot, dry window opens before the settling deadline at 12:00 UTC. Shenzhen in August sits in the East Asian monsoon and typhoon season, with high humidity and frequent showers, so cloud cover or rain can cap the daytime maximum even when the air mass is warm.[4][9][18][19] The contract resolves to the highest temperature recorded at the airport station on Wunderground for the calendar day, so the practical watchpoints are the reported hourly trace, any forecast updates from major weather services, and whether the airport site briefly clears enough for a late-morning or early-afternoon peak.[1][9][10]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Shenzhen on August 2? 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 Best Prediction Markets UK, which mirrors the Polymarket order book at 0% fees.

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 Best Prediction Markets UK. 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.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.