Pronóstico: Highest temperature in Shanghai on July 31?

Platform comparison

Market context

Shanghai is in the middle of its hottest stretch of the year, and the benchmark for this market is the **highest temperature at Shanghai Pudong International Airport Station** before the midday UTC settlement cut-off. July in Shanghai typically averages around **31°C** for daily highs, while broader city climatology shows late-July and early-August is the period most likely to produce severe heat, with recent summers repeatedly pushing into the mid-to-high 30s Celsius.[3][4][15]

That is why the current **0% YES** price is best read as a market constraint rather than a meteorological signal: it reflects the fact that the question resolves on the day’s peak reading at a specific station, and the result is still not locked in until after the full observation window. Historical Shanghai extremes show that the city can reach **40°C-plus** in exceptional heatwaves, but more routine July outcomes cluster far lower, with recent daily highs in the low-to-mid 30s and occasional spikes above 35°C when the subtropical ridge strengthens.[2][11][17][18]

For traders, the key catalysts are the day’s local forecast updates, the timing of any late-morning convective cloud or rain bands, and whether the heat eases before the early-afternoon local maximum. Shanghai’s recent weather has shown how quickly records can be challenged when the subtropical high dominates, and airport readings can differ from city-centre figures because the settlement source is a single station rather than a city average.[2][9][18]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Pronóstico: Highest temperature in Shanghai on July 31?. 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.

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.

What's the difference between match odds and outright odds?

Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.