Highest temperature in Seoul (Incheon) on August 8?

Platform comparison

Market context

Seoul’s late-summer heat remains the key driver for this market, but the settlement point is the **highest reading at Incheon Intl Airport Station** on 8 August, taken from Weather Underground’s Daily Observations table rather than the Day High & Low summary. Recent reporting shows the region has already been under a severe heatwave, with Seoul reaching 39.9°C on 7 August in one report and 40.0°C in another, while the Korea Meteorological Administration warned of very hot daytime conditions across the capital area. [2][3][4][13]

That backdrop matters because the crowd-implied **0% YES** leaves the market pricing in a result outside the currently visible consensus, not a guarantee of impossibility. Comparable August heat events in Seoul have produced rapid swings in intraday temperatures, and the relevant figure here is the single daily maximum at Incheon, which can differ from broader Seoul-area headlines and from airport-adjacent summary displays. Weather Underground’s own history pages show the Daily Observations format includes time-stamped temperature entries, which is the source the contract specifies for resolution. [12][6]

For traders, the practical catalysts are the KMA short-range forecast updates, any revisions to local heat advisories, and the actual observation sequence at Incheon through the settlement window. Reuters reported on 6 August that Seoul’s heatwave was expected to peak around 39°C, close to the city’s 2018 record, which frames the upper end of expectations even if airport readings end up a little lower or higher. On accessibility, “no-KYC up to $1,500” means a user can usually open and use the market without identity verification until cumulative activity reaches that threshold, while German GlüStV treatment and US CFTC reach are separate regulatory questions that affect availability and enforcement rather than the meteorological outcome itself. [13][10][6]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This overview of Highest temperature in Seoul (Incheon) on August 8? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.

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