Highest temperature in Shanghai on August 8?

Platform comparison

Market context

Shanghai’s heat on 8 August is typically decided by whether the city reaches the low-to-mid 30s Celsius rather than by any single daily average. Long-run August normals put Shanghai around 32–33°C for daytime highs, with some historical sources showing an average high of 32.5°C and others closer to 32°C, while the standing August record is far above that at 40–41°C.[1][2][6] That context makes a 0% crowd-implied probability on the top band easy to read as a statement about calibration, not impossibility: the market is asking for the maximum reading at Pudong Airport, and in a climatologically hot month like August, the relevant question is not whether Shanghai can get warm, but whether it can break into the upper end of the published temperature bands.[1][3][9]

For traders, the main watchpoints are the short-horizon weather drivers: cloud cover, rainfall, wind and any typhoon-related disruption, because those are the factors most likely to cap daytime heating or push the official peak below the broader August norm.[1][9][15] Weather Underground’s history pages for Shanghai Pudong Airport show how the market should be resolved, using the Daily Observations table rather than the summary “Day High & Low” figure, so intraday readings matter more than headline highs.[5][13] With the settlement window ending at 12:00 UTC, the relevant peak is the highest value recorded by that station before the cutoff, and recent forecast pages already place Shanghai in the high-80s Fahrenheit range, which is broadly consistent with low-30s Celsius outcomes if conditions stay settled.[5][7][12]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Sports-specific comparison page for Highest temperature in Shanghai on August 8?. 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.

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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.

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