Highest temperature in Shanghai on July 24?

Platform comparison

Market context

Shanghai’s outcome will be set by the day’s peak temperature at Pudong airport, not the citywide feel, so the key variable is whether the airport gets a brief heat spike before cloud, sea breeze, or rain suppresses the maximum. Current forecasting for Shanghai points to hot conditions around the mid-30s °C, with one outlook putting nearby highs at about 35°C and another showing a stable range around 27°C to 37°C, which is consistent with a summer regime where the daily high can be reached early if skies are clear.[1][2]

For calibration, July in Shanghai is typically hot, humid, and rain-prone, with a reported average high of about 32°C, around 135 mm of rainfall, and roughly 12 rainy days in the month.[4] That matters for a programmatic approach: a bot should not just ingest the headline forecast, but also track hourly temperature, precipitation probability, and cloud cover for the airport grid point, then update a live distribution for the daily maximum rather than a simple noon snapshot. In practice, the current 0% implied probability on YES only makes sense if the market bands are materially above the forecast tail, because the source is a single-station daily extreme and not a city average.[4]

The main catalysts to watch are morning convection, thunderstorm timing, and any shift in onshore flow that can cap the maximum before midday; Shanghai summers also warrant attention to sudden showers and humidity-driven instability.[3][4] For a trader using automation, the useful triggers are the next forecast refresh, radar-derived precipitation onset, and any airport-station hourly update that revises the expected daily high upward or downward, because those inputs can move a temperature-range market faster than general regional commentary.[1][2]

Sources: 1 · 2 · 3 · 4

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.

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.