Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
98% | 2% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
98% | 2% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 35°C | 98% |
| 36°C | 1% |
| 27°C or below | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 37°C or higher | 0% |
Market context
Shenzhen’s peak temperature on 24 July will be measured at Shenzhen Bao’an International Airport Station, and the market resolves against the day’s highest reading in degrees Celsius from Wunderground. Shenzhen is usually very hot in July, with typical daytime highs around 31–32°C and heavy humidity, so the main question is not whether it will be warm, but whether the airport station briefly spikes into the mid-30s or stays close to the seasonal norm.[1][2]
The current crowd price of 0% for **YES** sits well below the sort of outcome suggested by the July climatology and by the Polymarket ladder, where the leading bracket is 33°C at 28% and 32°C at 20%. That implies the market is effectively discounting the chance of a notably hot afternoon, even though historical July conditions make 31–33°C the most natural cluster; by comparison, the sportsbook-style temperature bands on the contract should usually be anchored around that range unless cloud cover or rain caps the daily maximum.[2][3]
For traders, the key catalysts are the morning trend in Shenzhen’s weather, the timing of any convective rain, and whether the airport station gets enough sun between showers to lift the day’s maximum into the higher brackets. July in Shenzhen also sits in the typhoon-and-monsoon window, with rainfall and humid air often moderating extremes, so radar evolution and short-range forecasts will matter more than broad seasonal averages.[1][2]
Methodology
This page reviews Highest temperature in Shenzhen on July 24? 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
- 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 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Highest temperature in Shenzhen on July 24? on Best Prediction Markets UK
Live order book, 0% fees, USDC settlement in seconds.
Open live market →