Highest temperature in Seoul (Incheon) on August 1?

Platform comparison

Market context

Incheon’s highest temperature on 1 August will be measured at Seoul’s main airport station, not the city centre, so the key question is whether conditions there run hot enough to clear the market’s implied *zero* outcome. August is normally the hottest part of the year in Seoul, with average highs around 30.5°C and a long-run record high of 39.6°C for the city on 1 August 2018, which shows that early-August extremes are possible when a heatwave sets in.[1][2]

That historical backdrop matters because the airport site usually sits a touch cooler than central Seoul, especially when onshore flow, cloud, or a sea-breeze boundary limits daytime heating; in plain terms, the market is more exposed to a “warm but not exceptional” finish than to an outright record chase. Even so, recent summers have been strong by local standards, with 2024 producing record or near-record heat across South Korea and Seoul recording an average August maximum of 33.3°C, underlining that very hot outcomes remain credible when the broader synoptic pattern favours them.[13]

The main catalysts are the same ones traders in summer weather markets should watch: the morning cloud cover, afternoon sea-breeze strength, and any late-forming convective showers that can cap the day’s maximum. Wunderground’s daily history page for RKSI is the settlement source, so the live trajectory into the noon UTC window is what matters most; if the morning starts clear and humid, the upside to a high-teens or low-30s Celsius reading is much greater than if marine air or rain bands arrive early.[1][18]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Highest temperature in Seoul (Incheon) on August 1?. 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).

Resolution & payout

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.

FAQ

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