Highest temperature in Shanghai on July 20?

Platform comparison

Market context

Shanghai’s July climate is defined by intense heat and humidity, with the city routinely experiencing peak temperatures between 27°C and 36°C during this month. The settlement for this market hinges on the highest temperature recorded at Shanghai Pudong International Airport Station on 20 July 2026, sourced from Wunderground. Given that July is historically one of Shanghai’s hottest months, a 0% probability for any outcome below the upper ranges appears inconsistent with long-term weather patterns, suggesting the current crowd-implied probability may be mispriced relative to historical norms[2].

Historical data shows that temperatures exceeding 35°C are common in mid-July, with 35°C currently the dominant market favourite at 100% probability on Polymarket, while outcomes at or below 28°C are priced at 0%[1]. This aligns with the typical monsoon-season profile, where frequent rain showers coexist with plentiful sunshine and high daytime temperatures averaging up to 36°C[2]. Traders should monitor real-time Wunderground updates as the day progresses, since sudden rain can temporarily suppress peak temperatures, though the overall trend remains firmly in the high-heat bracket. No external announcements or line-up changes apply, as this is a weather-dependent event with settlement confirmed by 2026-07-20T12:00:00Z.

Sources: 1 · 2

Methodology

Football-specific comparison page for Highest temperature in Shanghai 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.

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.

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.