Highest temperature in Beijing on July 21?

Platform comparison

Market context

Beijing's peak temperature on 21 July 2026 will be measured at Capital International Airport Station and resolved against historical weather data from Wunderground. July represents the height of Beijing's summer season, when daily highs typically range between 29–33°C, though extreme heat events can push readings several degrees higher. The settlement window closes at midday UTC, meaning the full 24-hour temperature cycle for that date will be captured before resolution.

Historical July records for Beijing show that temperatures exceeding 35°C occur in roughly one year per decade, whilst readings above 37°C are considerably rarer. The 0% crowd probability currently assigned suggests traders are pricing in a specific temperature threshold that sits well below typical July maximums for the region. Without visibility on which exact range brackets this market offers, the implied probability reflects either an unusually conservative threshold or a misalignment between market design and seasonal norms.

Traders should monitor China's meteorological forecasts from late June onwards, as monsoon patterns and high-pressure systems significantly influence Beijing's July weather. The China Meteorological Administration publishes extended forecasts approximately two weeks in advance. Any unusual atmospheric conditions—such as early-season heat domes or anomalous circulation patterns—would shift expectations materially. Historical precedent suggests that once early July data emerges, traders will have sufficient information to calibrate positioning ahead of the 21st.

Methodology

Football-specific comparison page for Highest temperature in Beijing on July 21?. 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.

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.