Highest temperature in Seoul (Incheon) on August 7?

Platform comparison

Market context

The highest temperature at Incheon International Airport on 7 August will be set by how far the current heat spike can build before the midday settlement cut-off. Seoul was forecast to reach 39°C on 7 August, with heatwave warnings expanded across the capital region, which is well above the August norm and the kind of level that usually makes the top-end ranges relevant rather than the middle bands.[2][1]

That is the key reason a 0% crowd-implied YES looks detached from the live weather set-up: comparable August climatology for Seoul sits around 84°F/29°C on average, with daily highs typically in the low 80s Fahrenheit and only occasionally pushing into the low 90s.[1][13] By contrast, the current spell is being described as the hottest part of the week, after Seoul already reached 37.9°C the previous day, so the distribution of outcomes is skewed towards the upper temperature bands if the air mass holds.[2]

For traders, the main catalysts are the morning and late-morning updates on the KMA short-range forecast, any heat advisories or downgrades, and whether cloud, rain or coastal breezes trim the realised airport maximum below the urban Seoul forecast.[9][2] Forecasts available early on 7 August point to very hot conditions around 30°C in Seoul with possible rain signals in some services, but the resolution source is Incheon Airport station data, so even modest changes in sea-breeze timing, shower coverage or timing of the peak can move the settled range materially.[3][4]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Highest temperature in Seoul (Incheon) on August 7?. 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 (US-focused) or Manifold (play-money).

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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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