Highest temperature in Shenzhen on July 23?

Platform comparison

Market context

The practical question is how hot Shenzhen Bao'an International Airport will get before the day ends, because this market settles on the **highest temperature recorded there on 23 July 2026**. A **YES** share pays out if the final result falls within the market’s specified temperature range, while a **NO** share pays if it lands outside it; with settlement tied to Wunderground’s airport-station history page, the key number is the day’s peak reading rather than the average or the morning temperature.

A **0% implied probability** usually signals that traders think the current range is extremely unlikely, but it can also reflect thin trading rather than a strong forecast. In weather markets, these low readings are often seen when the named location has already posted a warm start, because the eventual maximum may still be driven by afternoon heating, cloud cover or a sea breeze. At 6 am UTC, Shenzhen was reporting clear conditions and 84°F, with a RealFeel of 96°F, which shows the day already began warm enough to keep later highs in play.[1]

For traders, the main catalysts are the local daytime weather pattern and any short-term shifts in cloud, rain, wind or humidity that affect how far temperatures can climb. Shenzhen’s airport reading is the settlement reference, so forecasts for the broader city matter less than conditions at or near Bao'an International Airport itself. Once the sun is up, the decisive inputs are whether cloud builds, whether showers arrive, and whether winds cool the coast before the afternoon peak; there are no policy announcements or earnings-style events here, only the weather evolution that determines the final airport maximum.[1]

Sources: 1

Methodology

We track Highest temperature in Shenzhen on July 23? 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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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 Prediction Market UK. 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.

Do I need to KYC for this market?

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

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.