Highest temperature in Shenzhen on July 7?

Platform comparison

Market context

The highest temperature recorded at Shenzhen Bao'an International Airport on 7 July 2026 will determine the market outcome, with current crowd-implied probability sitting at 0% for any "YES" result. On Polymarket, this contract trades today with "29°C" as the frontrunner at 26%, followed closely by "30°C" at 26%, while "32°C" dominates the recent 5 July market at 100% certainty[1][2]. These prices reflect real-time USDC liquidity on the Polygon network, where conditional tokens adjust dynamically as traders bet on temperature ranges.

Historically, Shenzhen’s July highs peak around 30.9°C on 30 July, with the hottest month averaging 89°F (31.7°C) at Bao'an Airport[4][5]. The 5 July market’s 100% confidence in 32°C suggests the crowd expects similar extremes, yet the current 0% "YES" probability implies a mismatch between historical norms and present sentiment[2]. Traders should note that early July temperatures often dip slightly before the late-month peak, creating volatility in conditional token valuations.

Key catalysts include the morning thunderstorms forecast for 7 July, which may suppress daytime highs below 30°C[7]. AccuWeather predicts 85°F (29.4°C) with rain, while Meteoblue recorded a maximum of 32°C on 6 July, indicating rapid fluctuations[6][7]. Traders must monitor Wunderground’s hourly updates, as the settlement relies on the highest temperature recorded at any time on 7 July[1]. Any sudden shift in cloud cover or rainfall intensity could alter the conditional token distribution significantly.

Sources: 1 · 2 · 3 · 4 · 5

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 Polymarket Scam?, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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 Polymarket Scam?. 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.