Highest temperature in Shanghai on August 19?

Platform comparison

Market context

Shanghai's highest temperature on 19 August 2026 will be measured at Pudong International Airport Station and resolved via Weather Underground's Daily Observations table. The market currently shows 0% implied probability, suggesting traders expect the settlement window to close before reliable data becomes available or that the specific temperature range offered carries negligible conviction.

Historical August temperatures at Shanghai Pudong typically range from 32–35°C, with occasional peaks above 36°C during heat waves. The 0% reading reflects the settlement mechanics rather than meteorological likelihood; markets on real-world events closing mid-event often show compressed probabilities when traders cannot act on live data. Comparable weather markets on btc-prediction.bet have seen sharp repricing once observation windows open, particularly for Asian stations where intraday temperature swings are material. August is Shanghai's hottest month, and the airport station's readings tend to track 1–2°C higher than urban core measurements due to tarmac exposure.

Traders should monitor China Meteorological Administration forecasts released in early August 2026, which typically provide 10-day outlooks with reasonable accuracy for maximum temperatures. Typhoon activity in the Western Pacific during mid-August could suppress temperatures significantly; the Northwest Pacific typhoon season peaks in August, and any system tracking toward the Yangtze River Delta would cool conditions measurably. USDC settlement occurs post-resolution, so the contract's value depends entirely on Weather Underground's Daily Observations table availability and accuracy on 19 August itself—a dependency worth verifying against historical data availability for this station.

Methodology

This page reads Highest temperature in Shanghai on August 19? on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

UK Frequently Asked Questions

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UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

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