Highest temperature in Shenzhen on August 1?

Platform comparison

Market context

Shenzhen’s airport temperature for 1 August will be driven by a humid subtropical summer pattern, so the key variable is not whether it gets hot, but *how hot by local midday*. August averages across Shenzhen cluster around 31–32°C highs, with many references putting typical daytime maxima near 32°C and rainfall still elevated in the wet season.[2][12][13][18]

For a programmatic read, the current 0% YES price is best treated as a thin-liquidity starting point rather than a weather forecast. Historical August ranges show that Shenzhen can still reach the mid-30s °C on hot days, with one source citing a 36°C August 1 maximum in climate tables and another noting an even higher monthly record in the low 40s °C range in past years.[2][7] A bot that watches only the headline probability can miss that the market settles on the single highest airport reading for the day, so intraday temperature traces matter more than daily averages.

The main catalysts are the same ones a rules engine would ingest: local forecast updates, the timing of the warmest afternoon hours before the 12:00 UTC settlement window closes, and any rain or typhoon-related cloud cover that suppresses the peak. Shenzhen’s wet season runs through summer, and July–September is commonly associated with heavy showers and typhoon risk, which can materially cap extremes on a given day.[13][18] For a trading workflow, that means polling weather feeds repeatedly through the morning UTC, then comparing the airport station forecast against the historical August distribution rather than relying on a single app snapshot.[2][19]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Highest temperature in Shenzhen on August 1? 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 Bot UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 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.

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.