Highest temperature in Guangzhou on July 27?

Platform comparison

Market context

Guangzhou’s main airport station is set up for another very hot day, with forecast highs around **37°C** and no rain expected in some long-range guidance, while other current outlooks are a little softer at about **30°C** with only a low chance of drizzle.[1][2][3] For a market settled on the *highest recorded temperature* at Guangzhou Baiyun International Airport, the key question is not whether it gets hot, but whether the day produces a reading high enough to clear the upper end of the usual July range.

That is why a **0% YES** price only makes sense if the market is referring to a very specific temperature band that the present forecast does not currently support. July in Guangzhou is normally hot and humid, with typical daily highs around **32°C**, and the current forecast envelope still sits broadly above that baseline.[1][4] In practical terms, traders are looking at a ceiling that may be driven more by cloud cover, shower timing and airport-specific local conditions than by city-wide averages.

The main catalysts are the day’s evolving weather model runs and any change in rainfall risk, because scattered showers can cap the maximum even when the broader forecast stays hot.[1][2] The settlement source is Wunderground’s historical daily record for Guangzhou Baiyun International Airport Station, so late shifts in the airport’s observed peak — rather than the city forecast alone — will decide where the number lands.[1]

Sources: 1 · 2 · 3 · 4

Methodology

Football-specific comparison page for Highest temperature in Guangzhou on July 27?. 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.

What are live sports odds on Polymarket?

Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.

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.

Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.