Highest temperature in Shanghai on August 12?

Platform comparison

Market context

Shanghai's weather in mid-August typically sits within the hot and humid range characteristic of the city's summer monsoon season. Historical August temperatures at Pudong International Airport, the official measurement station, routinely reach 32–35°C on peak days, with occasional excursions into the 36–37°C bracket during heat waves. The 0% crowd probability suggests traders are pricing in either an exceptionally cool August spell or uncertainty about the specific resolution mechanics tied to Weather Underground's Daily Observations table rather than the Day High & Low summary.

August 2026 falls within the typical window for Shanghai's summer peak, when the East Asian summer monsoon dominates regional weather patterns. Comparable years show that temperatures exceeding 35°C occur in roughly 40–50% of August days at Pudong, whilst readings above 37°C remain less frequent but plausible during sustained high-pressure systems. The distinction between Weather Underground's Daily Observations and Day High & Low sections has created resolution ambiguity in similar markets; traders should verify which historical dataset aligns with the stated primary source before committing positions.

Monitoring tropical cyclone activity in the Western Pacific during late July and early August will be material, as storm systems can suppress temperatures significantly. The China Meteorological Administration's seasonal forecasts, typically released in late June, will provide guidance on whether 2026's August is expected to track warmer or cooler than the 30-year normal. Any significant deviation from typical monsoon patterns—such as early arrival of autumn high-pressure systems—would shift the probability distribution materially.

Methodology

Sports-specific comparison page for Highest temperature in Shanghai on August 12?. 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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