Highest temperature in Taipei on August 9?

Platform comparison

Market context

Taipei’s peak temperature is being set by the airport station reading in Weather Underground’s Daily Observations table, so the key variable is the actual afternoon maximum rather than the generic daily high banner. Current forecasts are materially warm, with several services clustering the day’s high around 30–31°C and showing rain or thunderstorms in the mix, which can cap heating if cloud cover arrives early. [2][3][11][14]

A 5% YES price implies the market is treating a materially hotter outcome as unlikely, but Taipei in August can still produce sharp upside surprises when sunshine breaks through before convection builds. Comparable market prints on nearby Taipei temperature contracts have at times resolved to higher-than-expected outcomes, including a 37°C reading on 5 August 2026, so the tail remains live even when the base forecast sits in the low 30s. [18][5][15]

Traders should watch the timing of rain bands, thunderstorm development, and any intraday shifts in forecast models before the settlement window closes, because late-afternoon insolation often determines whether the airport station prints 31°C, 33°C, or higher. On-chain, the contract settles in USDC, so positioning can move quickly if BTC or ETH volatility broadens risk appetite or funding changes spill into prediction market flow, but the direct driver remains the weather tape rather than crypto direction. [2][11][16]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reads Highest temperature in Taipei on August 9? 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.

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