Highest temperature in Guangzhou on July 20?

Platform comparison

Market context

Guangzhou is experiencing light rain and fog this evening, with temperatures hovering around 70 °F, a stark contrast to the scorching heat typically expected in mid-July. The market currently assigns a 0% probability to any outcome, suggesting the crowd believes the settlement conditions will not be met or that the event has already passed without the required temperature threshold being reached. Given today’s date is 20 July 2026 and the settlement window ends at 12:00 UTC, the day is effectively over for temperature recording purposes at the Baiyun International Airport Station, meaning the highest temperature has already been logged.

Historically, Guangzhou’s July highs frequently exceed 33 °C, with records reaching 38 °C in recent years, making a 0% implied probability highly anomalous unless the market has a specific resolution flaw or the temperature threshold in question is unattainably high. Comparable cases from 2023 and 2024 show consistent daytime peaks well above 30 °C, indicating that if the market resolved on a standard high-temperature range, the probability should reflect a non-zero chance. The current pricing likely stems from a misunderstanding of the settlement timeline or an error in the market’s resolution logic rather than actual weather data.

Traders should monitor Wunderground’s official daily history page for the confirmed peak temperature recorded at ZGGG on 20 July 2026, as this is the definitive resolution source. Any discrepancy between the reported high and the market’s implied outcome could signal a mispricing opportunity, especially if the recorded temperature falls within a range the market currently dismisses. No further announcements or schedules are relevant, as the weather event has concluded, and the focus must remain on verifying the official data against the market’s resolution criteria.

Sources: 1

Methodology

Football-specific comparison page for Highest temperature in Guangzhou on July 20?. 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.

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.

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.

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.