Highest temperature in Shenzhen on July 13?

Platform comparison

Market context

Shenzhen is entering its peak summer heatwave, with July consistently delivering the year’s highest temperatures at Bao’an International Airport. Historical data confirms July as the hottest month, averaging a high of 89°F (32°C), while recent global records show daily maximums frequently climbing above 38°C across the region [2][5]. The current crowd-implied probability of 0% YES suggests the market expects the temperature to fall outside the specific range offered, yet this contrarian stance ignores the statistical likelihood of extreme heat during this period. In comparable years, Shenzhen has regularly breached 35°C, making a 0% valuation appear heavily skewed against the seasonal norm.

Traders should monitor real-time readings from Wunderground, the official resolution source, as afternoon peaks typically occur between 14:00 and 16:00 local time [1]. Current forecasts indicate moderate rain and a maximum of 32°C for the day, which could suppress temperatures if the precipitation persists through the afternoon [3][10]. However, the heat index is already showing a RealFeel of 96°F with clear skies in the current hour, suggesting rapid warming if cloud cover breaks [6]. The key catalyst is the timing of the rain; if it clears before 15:00, temperatures could spike significantly above the consensus expectation, creating value for the contrarian angle betting on higher heat.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Shenzhen on July 13? 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 Who Will Win, which mirrors the Polymarket order book at 0% fees.

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.

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.