Highest temperature in Shenzhen on July 25?

Platform comparison

Market context

Shenzhen's peak temperature on 25 July 2026 will be recorded at Bao'an International Airport Station and resolved against historical weather data from Wunderground. The market currently shows 0% implied probability across all temperature bands, suggesting either technical settlement issues or genuine uncertainty about which range will ultimately contain the day's high.

July in Shenzhen sits squarely within the city's hottest season, with average daily highs around 32–33°C and frequent excursions into the mid-to-high 30s. Historical records from the past decade show that extreme heat days—those reaching 36°C or above—occur roughly once every two to three years during this window, whilst temperatures below 30°C are exceptionally rare in late July. The airport station, located in the coastal Bao'an district, typically records slightly cooler readings than inland urban areas due to maritime influence, though this moderating effect rarely drops peak temperatures below 31°C during midsummer.

Traders should monitor tropical cyclone activity in the South China Sea during early-to-mid July, as any system tracking toward the Pearl River Delta would suppress temperatures through cloud cover and rainfall. The China Meteorological Administration issues monthly outlooks in early July that often flag heat anomalies or monsoon patterns affecting the region. Additionally, the specific day's atmospheric pressure systems and any lingering moisture from preceding weather events will determine whether Shenzhen experiences typical summer heat or an outlier event. Current consensus clustering around middle-range temperatures (32–35°C) reflects the statistical baseline, leaving potential value in either tail if seasonal patterns shift.

Methodology

We track Highest temperature in Shenzhen on July 25? 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 Who Will Win 2026. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.