Highest temperature in Shenzhen on August 4?

Platform comparison

Market context

Shenzhen’s airport temperature has to peak somewhere on 4 August, and the market is pricing that outcome as a **0% YES** long shot, which is effectively a contrarian call that the day’s high will fall outside the named settlement band. For a handicapper, that makes the favourite the mid-range summer readings usually seen in coastal South China, with the underdog being a genuinely cooler or hotter extreme driven by rain, sea breeze, or a brief convective burst. August norms for Shenzhen are hot and humid, with average highs around 32°C and lows around 26–27°C, while broader monthly guides also flag heavy rainfall and frequent showers in the city during August.[1][3][7][17][18]

The comparable-case frame is that Shenzhen in August often clusters around the low-30s Celsius rather than pushing far away from it, which is why market consensus in similar setups tends to sit on the central temperature bins rather than the tails.[3][7][18][20] That said, recent forecast snapshots show passing showers, cloud cover and humidity, all of which can cap the afternoon maximum and create value in the cooler end of the range if rain lingers through the warmest part of the day.[5][8][15][16] In market terms, the consensus looks to be “hot but not exceptional”, while the value angle is whether moisture and cloud suppress the high enough to keep the final reading below the crowd’s preferred band.[3][15][18]

The main catalysts are the day’s actual weather progression at Shenzhen Bao’an International Airport and any forecast revision that shifts the timing of rain, cloud break-up, or onshore winds before the midday UTC settlement window closes. Shenzhen is in its rainy season, and multiple forecast services currently show showers or mixed cloud/rain for early August, which matters because a late-morning rain band can materially change the daily maximum if it arrives before the peak heating window.[3][8][15][16][20] Traders should also watch for tropical-system updates, as August in South China carries a recognised typhoon risk that can alter both temperature and rainfall patterns quickly.[18]

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 Who Will Win 2026, 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

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win 2026 trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.