Highest temperature in Shenzhen on July 22?

Platform comparison

Market context

Shenzhen Bao’an International Airport is already running hot this morning, with current readings near 32–33°C and AccuWeather showing 88°F, a RealFeel® of 100°F and only light cloud cover. That matters for this contract because the settlement is keyed to the highest temperature recorded at the airport station on 22 July, so the relevant question is whether the day merely stays warm or pushes into a distinctly hotter afternoon peak.[1][2][3]

Against that backdrop, a 0% crowd-implied probability for the top outcome looks far more cautious than the live weather data suggest. Comparable Shenzhen summer days often reach the low-30s Celsius, and the forecast consensus in the available sources is already clustering around a daily maximum of 32–33°C, which is consistent with a result that would sit in an ordinary hot-season band rather than an extreme outlier.[2] In prediction markets, that kind of setup usually leaves room for sharp repricing if traders see the market as undercounting the chance of a high-end intraday spike.

The main catalysts are straightforward: the afternoon temperature profile at Shenzhen Bao’an, cloud build-up, wind, and any rainfall that suppresses the day’s maximum. At 10:06 UTC, the available live forecasts still show sunny conditions and a low precipitation chance, so the next material move is likely to come from updated hourly observations rather than a new policy or travel schedule. There is no sportsbook reference in the supplied material to compare directly, so the notable divergence here is between the flat prediction-market line and the weather models pointing to a conventional but still warm 32–33°C outcome.[1][2][3]

Sources: 1 · 2 · 3

Methodology

This page reviews Highest temperature in Shenzhen on July 22? 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, which mirrors the Polymarket order book at 0% fees.

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

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'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.

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.