Highest temperature in Beijing on August 4?

Platform comparison

Market context

Beijing’s reading at Capital International Airport is still the key variable for this market, and the live forecast points to a hot, unsettled day rather than a cool outlier. Several services cluster the day’s high around the low-to-mid 30s Celsius, with one Beijing forecast putting the daily peak at 34°C and a separate city forecast from 3 August showing Beijing at 31°C with thunderstorms; the airport station can run a little differently from central-city forecasts, but the broad signal is clear: late-summer heat with rain risk rather than an extreme maximum well below seasonal norms.[13][14]

The 0% implied probability looks reasonable if the market is asking whether the temperature lands in the very lowest range buckets, because August in Beijing is typically hot and humid, with average highs around 30°C to 32°C and frequent rainfall. Comparable August guidance from multiple forecasters places daily highs near 30°C to 36°C, which makes a sub-25°C outcome unusually weak unless rain or cloud cover suppresses the afternoon peak materially.[4][10][17] That means traders should read the current price as a reflection of a normal summer-heat setup, not a signal that cooler air has become likely.

The main catalysts are the afternoon thunderstorm timing, the exact airport-observation series, and whether the highest reading is printed before or after convective cloud cover arrives. Forecasts for Beijing show high precipitation chances and variable hourly temperatures through the day, so the market can still move if the morning starts warmer than expected or if showers arrive early and cap the maximum.[1][12] Because the settlement source is Wunderground’s daily history page for Beijing Capital International Airport Station, the final high depends on that station’s recorded maximum rather than a city-average forecast, which means traders should watch the airport-specific observation feed rather than generic Beijing headlines.[13]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Sports-specific comparison page for Highest temperature in Beijing 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 or Manifold.

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?

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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.