Highest temperature in Shenzhen on July 25?

Platform comparison

Market context

Shenzhen's peak temperature on 25 July 2026 will be measured at Bao'an International Airport Station and resolved against historical weather data from Wunderground. The crowd currently assigns zero probability to any outcome, suggesting either insufficient liquidity or genuine uncertainty about which temperature band will materialise on that specific date.

July sits within Shenzhen's hottest season, when daily maxima routinely exceed 32°C and frequently reach 34–36°C. Historical records from the airport station show that temperatures in the 33–35°C range dominate mid-to-late July, with occasional spikes above 35°C during heat waves. The 0% implied probability across all ranges is unusual for a weather market with a defined settlement date and reliable measurement source, indicating either early-stage market formation or that traders are awaiting seasonal forecasts closer to the event window. This creates potential value in ranges that align with Shenzhen's established July climatology rather than tail outcomes.

Traders should monitor the Asian summer monsoon pattern and any tropical cyclone activity in the South China Sea during early July 2026, as both influence Shenzhen's humidity and cloud cover. The China Meteorological Administration typically issues 10-day forecasts in mid-July that provide more granular temperature guidance. Sea surface temperatures in the region and any El Niño or La Niña conditions developing through spring 2026 will shape whether the season trends warmer or cooler than the 30-year average. Settlement depends entirely on Wunderground's historical records for that specific station, making data availability the sole execution risk.

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 Who Will Win, which mirrors the Polymarket order book directly.

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. 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.

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.

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 Who Will Win trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.