Pronóstico: Highest temperature in Shenzhen on July 23?

Platform comparison

Market context

Polymarket is pricing this Shenzhen heat contract at **0% YES** even though the day is still in progress, which means the market is treating a qualifying peak as effectively off the table for now. On Polymarket, that price reflects the current value of the conditional tokens settled in USDC on Polygon, so any move in expectations has to come from traders repricing the chance that Shenzhen Bao’an Airport will print a higher temperature before the Wunderground settlement window closes.

For context, Shenzhen in late July is usually a high-heat, high-humidity environment, so the question is not whether it can get warm, but whether the day’s maximum lands in the specific temperature band that resolves this contract. The current weather in Shenzhen is already hot, with AccuWeather showing 84°F and a RealFeel of 96°F, under clear skies and 88% humidity, which supports the idea that the day may still have room to run higher if solar heating persists.[1] In practice, these temperature markets often hinge on the afternoon peak rather than the morning reading, so traders tend to watch whether cloud cover, sea breeze, or rain builds before the daily maximum is set.

The main catalysts are local weather evolution and the exact observation used by Wunderground at Shenzhen Bao’an International Airport Station, not broader citywide conditions. A trader would watch the forecast for afternoon convection, any typhoon-related moisture, and the airport station’s reported high versus surrounding stations, because the market resolves on that single source rather than on a city average. The settlement cut-off is the key mechanical deadline: once the Wunderground daily high is fixed for the date, the conditional tokens resolve accordingly on-chain.[1]

Sources: 1

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 Qué Es, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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 Qué Es. 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.

Do I need to KYC for this market?

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