Highest temperature in Shenzhen on August 7?

Platform comparison

Market context

Polymarket is pricing this Shenzhen airport heat contract at **0% YES** right now, which means the market is assigning essentially no weight to any outcome landing in the specified higher temperature band on the Weather Underground Daily Observations table. Because the contract settles on the **highest recorded temperature** at Shenzhen Bao'an International Airport Station, not the headline day-high summary, the relevant number is the intraday peak that appears in the observations feed and is converted into Celsius for the banded resolution.

That zero price sits against a climate backdrop that usually makes Shenzhen in August a high-heat, high-humidity environment. Seasonal guides and weather services put typical August highs around the low 30s Celsius, with upper-30s readings possible in hot spells, while the Hong Kong Observatory’s regional forecast for Shenzhen has recently shown maxima in the mid-30s and AccuWeather noted a high-temperature warning on 6 August 2026, expecting 36°C or above under the edge of Typhoon “White Dolphin”. Historical August patterns therefore make a non-zero chance of a hotter reading plausible, but the exact settlement depends on the station-level observation used by Weather Underground rather than broader city forecasts.

For traders, the main catalysts are the live airport observations, any late-day spike before the 12:00 UTC settlement cut-off, and whether showers or storm outflows cap the peak earlier than forecast. On Polymarket, positions are held through USDC on Polygon via conditional tokens, so the practical risk is not the general weather narrative but the exact band in which the final observation lands. The key dependency is Weather Underground’s Shenzhen Bao'an International Airport Station table, especially if forecast highs and observed values diverge during a volatile monsoon or typhoon-influenced afternoon.

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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 Polymarket Alternative UK, 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.

UK Frequently Asked Questions

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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.

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