Highest temperature in Shanghai on July 28?

Platform comparison

Market context

Shanghai's summer temperatures peak reliably in late July, with the city's humid subtropical climate producing consistent heat during the monsoon season. The highest daily temperature recorded at Pudong International Airport on 28 July will settle this market, with Wunderground's historical database serving as the definitive source. The settlement window closes at midday UTC on that date, meaning traders must account for the full day's temperature range before the market locks.

Historical precedent shows Shanghai's late-July highs cluster between 32–36°C, with occasional excursions toward 37°C during particularly intense heat waves. The past decade's records indicate that temperatures exceeding 38°C on this specific date remain rare; the 0% crowd probability suggests the market is pricing for a range below historical norms. Reviewing Wunderground's archive for 28 July across 2015–2024 provides the empirical baseline for calibrating position sizing and conditional order thresholds.

Traders implementing automated monitoring should note that Shanghai's meteorological station reports final daily temperatures by early evening local time, though Wunderground's interface may experience lag during peak traffic periods. The China Meteorological Administration publishes seasonal forecasts in early July; their June-issued outlook for summer 2026 will be the primary catalyst for adjusting expectations. Setting conditional orders tied to official CMA heat-wave alerts or tracking real-time humidity indices from adjacent monitoring stations can improve execution timing, particularly if early-July 2026 conditions signal an anomalous pattern diverging from the historical mean.

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 Bot UK, 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 Bot UK. 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 Polymarket Bot UK 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.