Highest temperature in Shanghai on June 29?

Platform comparison

Market context

On 29 June 2026, the Shanghai Pudong International Airport Station will record its peak temperature for the day, a metric that historically rarely dips below 30°C during late June. Current crowd-implied probability sits at 0% YES, suggesting the market believes the temperature will fall outside the favoured range, yet this contradicts decades of climatological data. Historical averages for June at Pudong show daily highs climbing from 77°F to 83°F (25°C to 28°C), with summer peaks regularly exceeding 30°C and reaching 35°C under sunny conditions[1][5]. The consensus appears to be heavily contrarian, betting on an anomalous cold snap, whereas the value spot likely lies in the underdog position that aligns with the typical seasonal trend where temperatures exceed 30°C.

Traders must monitor the immediate weather schedule for light rain and thunderstorm risks, which are forecast for Monday 29th June, potentially suppressing peak temperatures slightly but not eliminating the heat[2][6]. While drizzle and a gentle breeze are expected with humidity at 84%, the underlying thermal energy remains high, and shortwave solar energy, though decreasing, still provides significant heating potential[1]. The critical dependency is whether the cloud cover persists throughout the afternoon; if skies clear, temperatures could surge toward the 35°C upper limit typical of Shanghai summers[5]. Recent forecasts indicate a 25% risk of thunderstorms, yet the baseline expectation of 80°F to 85°F (27°C to 29°C) suggests the 0% probability is a mispricing of the seasonal norm[7].

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 Who Will Win 2026, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win 2026 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.