Highest temperature in Seoul on June 22?

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Market context

The real-world event is whether **Incheon International Airport** posts a daily high that lands in the market’s winning temperature band on 22 June. With the crowd pricing **0% YES**, the board is treating the favourite as a near-certain miss, which is an extreme stance for a late-June weather contract: the consensus in the public market is still clustering around a warm but ordinary Seoul-area outcome, with Polymarket’s own range leaning to **26–28°C** and the main outcomes sitting at **27°C** and **26°C**.[1] That leaves the underdog case priced as overwhelming, so any move towards the forecast-metre’s middle-of-the-road summer profile would create the main value pocket.[1][2]

Historically, late June in Seoul is comfortably warm rather than extreme: average daily highs rise through the month, with highs typically around the upper 20s Celsius and only rare excursions far above that band.[2] That matters for handicapping because this market resolves on the *day’s peak*, not the average, so a sunny, dry afternoon can still clear the lower bins even without a heatwave. The contrarian angle is that 0% implies the market is effectively saying “no plausible path” to the target band, yet the seasonal baseline and current implied range suggest the favourite is actually the warmer-weather side, while the underdog is anything meaningfully cooler than the mid-20s Celsius.[1][2]

For catalysts, the key inputs are the near-term Korea Meteorological Administration forecast, any shifts in cloud cover or rainfall timing, and whether a weak or strong monsoon influence pushes the afternoon peak down or lets it run up. Polymarket notes that forecast models and ensemble guidance are currently centred on **26–28°C**, and it also flags that revisions count until the first reading for the following day is published, so late station updates can still matter.[1] In practice, traders should watch whether the day stays under persistent cloud or receives enough sun to lift the airport station’s high towards the market’s favoured band; the surprise angle is not a record heat burst, but a small forecast overshoot into the consensus zone.[1][2]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Seoul on June 22? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Who Will Win 2026 — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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

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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.

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Zero. Who Will Win 2026 routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.