Highest temperature in Seoul (Incheon) on August 8?

Platform comparison

Market context

Seoul’s airport is being priced as a **very hot** day, but the market’s 0% yes implied probability still implies the crowd sees virtually no chance of the exact Weather Underground range landing where the event needs it to. The sharper read is that the consensus is for a high in the mid-30s Celsius at most, with the official Korean forecast calling for **32–33°C** in the area and private forecasts ranging from the low- to mid-30s Celsius for the day[8][12]. That leaves the favourite as the lower temperature bands around the forecast peak, while anything materially above that is the underdog side of the book.

The historical frame matters because August in Seoul is not a low-volatility temperature regime: climatology sources describe it as the city’s hottest month, with typical daytime highs around the high-20s to about **30°C**, but with occasional spikes well above that and a record August high of **38.2°C**[17][19]. On that basis, a 0% quote can look like a value trap if traders are anchoring to averages rather than extremes. The contrarian angle is that airport stations can briefly run hotter than city averages under strong sun and light wind, so the market may be underestimating the tail if the forecast heat verifies more cleanly than expected[7][11].

What matters into settlement is the **hourly evolution** at Incheon and whether afternoon convection caps the peak before the day’s maximum is logged. Weather Underground’s hourly forecast already points to a slight thunderstorm risk and a high around **95°F** for Seoul, while other intraday models show showers early and then a mostly sunny, hot afternoon[11][3][7]. A trader should watch for any forecast updates tied to precipitation timing, because a well-timed shower can trim the peak even when the day still feels oppressive[2][7].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win 2026, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Who Will Win 2026. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.