Pronóstico: Highest temperature in Shanghai on August 4?

Platform comparison

Market context

Shanghai’s temperature on 4 August will be judged by the highest reading at Pudong International Airport Station, not by the citywide forecast headline, so the key question is whether the airport reaches a sharply hotter afternoon peak. Current August guidance points to a generally hot but not extreme day, with Shanghai’s monthly highs mostly in the low 30s Celsius and one forecast calling for about 34°C on 4 August, while another puts the day nearer 33°C with no rain indicated. [1][2][3][15]

That leaves the market sitting in a part of the distribution where the *upper* temperature band matters more than the average. Comparable August climate guides describe Shanghai as regularly hot and humid, with typical highs around 31–32°C and occasional spikes into the mid-to-high 30s, and one recent summary notes a 39°C peak in August 2025. [4][7][8][16][17] Against that backdrop, a 0% YES crowd price implies traders are heavily discounting a record-level or very hot reading, but the historical range still allows for a materially warmer outcome than the mean forecast if heat builds through the afternoon. [1][7][17][18]

The main catalysts are the intraday evolution of cloud cover, rainfall and humidity, plus any change in local wind or monsoon flow that lifts the afternoon maximum at the airport. Forecasts currently disagree only modestly, but they all point to a hot, humid day with temperatures around 33–34°C and limited precipitation risk, which would tend to cap the upside unless conditions trend clearer and more stagnant than expected. [2][3][15] Traders will be watching the Shanghai Pudong airport observations during the settlement window, because a late-day spike can still matter if the day starts near 29–30°C and builds through peak heating.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Pronóstico: Highest temperature in Shanghai on August 4?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi (US-focused) or Manifold (play-money).

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

Are prediction markets better than sports betting?

Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.

When do sports markets resolve?

Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.

Can I bet on individual matches?

Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.

Which sports markets are available?

Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.

How fast do sports winnings settle?

Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.