Highest temperature in Guangzhou on August 4?

Platform comparison

Market context

Guangzhou’s temperature on 4 August will be driven by a hot, humid summer pattern at Baiyun Airport, with forecasters pointing to a daytime high around **31–33°C** and rain in the mix. The current 0% YES price implies the market is treating an outcome in the listed temperature bands as effectively impossible, but the published forecasts suggest the day is still capable of landing well inside the settlement ranges, especially if convection lifts the afternoon maximum before heavier showers arrive.[1][8][13]

That scepticism is easier to understand if you frame the event against Guangzhou’s August climate. Monthly guides put average August highs near **91°F/33°C** and lows around **77–79°F/25–26°C**, while some day-specific forecasts for 4 August cluster around **33°C** with moderate or heavy rain.[1][2][10][12] In other words, the market is not about a rare heat spike; it is about whether the airport’s peak reading ends up on the warm side of a fairly normal summer day, where cloud, rain bands and humidity can still cap the maximum.[6][14][15]

The main catalysts are the same ones that move the intraday high: the timing of showers, thunderstorm coverage, and any updated official forecast close to noon local time, before the settlement window closes at 12:00 UTC. The latest city forecast issued by Hong Kong’s Government Information Centre has Guangzhou at **25–31°C with rain**, which sits below some private models and means traders should watch for revisions rather than assume a fixed ceiling.[8] Live airport observations from BBC Weather also show Baiyun reporting **30°C** with high humidity, underlining that the day can still evolve materially if clouds thin or convection strengthens later in the morning.[6]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Sports-specific comparison page for Highest temperature in Guangzhou 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.

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.