Highest temperature in Shanghai on August 21?

Platform comparison

Market context

Shanghai's peak temperature on 21 August 2026 will be measured at Pudong International Airport Station using the Daily Observations table on Weather Underground, which provides granular hourly readings rather than the rounded summary figures. August in Shanghai typically sees maximum temperatures between 32–35°C, with occasional peaks above 36°C during heat waves. The settlement window closes at midday UTC on the resolution date, meaning traders must account for the full calendar day's observations recorded at the airport station.

Historical August data from Shanghai shows considerable year-to-year variation. Between 2015 and 2024, August highs at Pudong ranged from 31.5°C to 37.8°C, with roughly 40% of years exceeding 35°C. The 0% crowd probability suggests traders are either heavily discounting a specific temperature range or the market has insufficient liquidity. August 2026 falls within the typical monsoon season transition period, when tropical systems occasionally bring cooler, wetter conditions that suppress afternoon peaks, though sustained high-pressure systems can drive temperatures above seasonal norms.

Traders should monitor China Meteorological Administration forecasts and tropical cyclone activity in the Western Pacific during late July and early August 2026, as these directly influence Shanghai's weather patterns two to three weeks ahead. The distinction between Weather Underground's Daily Observations table and its Day High & Low summary is material—the former captures all recorded temperatures whilst the latter may round or smooth values. Verification of the exact measurement methodology at Pudong station before settlement is essential, as airport weather stations occasionally undergo equipment changes or recalibration.

Methodology

Sports-specific comparison page for Highest temperature in Shanghai on August 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 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

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.

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.