Highest temperature in Beijing on July 20?

Platform comparison

Market context

Beijing is experiencing a cool, cloudy day with a maximum temperature of 25°C at the Capital International Airport, far below the scorching peaks typical of mid-summer in the region [1]. This current chill explains the crowd-implied 0% probability for any high-temperature outcome, as the atmosphere lacks the intense solar heating required to push readings into the upper ranges traders might expect for late July.

Historically, Beijing’s July highs frequently exceed 35°C, with records reaching 41°C in 2023, making the current 25°C reading an outlier rather than a trend [1]. The 0% probability suggests the market is betting on a continuation of this anomalous coolness or a resolution error, yet comparable cases from previous years show that sudden heatwaves can still occur before the settlement window closes on 2026-07-20T12:00:00Z, especially if cloud cover breaks and humidity rises.

Traders should monitor Wunderground’s hourly updates for the Beijing Capital International Airport Station, as any shift in wind patterns or cloud dissipation could trigger a rapid temperature spike [1]. The primary catalyst is the weather forecast for the next 12 hours; if the current 39kt gusts and 3500m visibility persist, temperatures will likely remain suppressed, but a change in these conditions could invalidate the current pricing and create a significant trading opportunity before the market resolves.

Sources: 1

Methodology

Sports-specific comparison page for Highest temperature in Beijing 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 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.

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.

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.