Highest temperature in Seoul (Incheon) on August 4?

Platform comparison

Market context

South Korea’s late-summer heat is the immediate real-world driver here, with forecasts showing Seoul-area temperatures surging to around 38°C and Incheon forecast near 37°C on 4 August, alongside a serious heatwave warning taking effect from 11:00 a.m. local time.[1][3][5] For a market settled on the day’s *highest* temperature at Incheon International Airport, the key question is not whether it will be hot, but whether the airport station briefly touches the upper end of the forecast range before any afternoon cloud, showers or sea-breeze effects cap the peak.[3]

The crowd is currently pricing **0% YES**, which is consistent with the unusually strict wording of the resolution source and the need for the airport station to record the specific qualifying high during the settlement window. Comparable August climate data suggest this is normally one of Seoul’s hottest periods, with typical highs in the upper 20s to mid-30s Celsius rather than a clean 38°C spike, so a zero-implied price is effectively a statement that the market sees the exact airport reading as unlikely even in a heatwave.[13][16][18] That matters because airport locations often run a little cooler than inner-city forecasts, and the market will only care about the Wunderground daily maximum for the station, not the broader metropolitan headline.[3]

Traders should watch the official Korean forecasts and any updates to heatwave alerts, because the near-term catalyst is the progression of the daytime heat plume rather than a political-style event calendar.[4][5] SBS reported that Seoul was already near 30°C in the morning and that 38°C was possible later in the day, while Asiae noted scattered showers in parts of western Korea but said the rain would not be enough to break the heat.[1][3] If forecast revisions trim the expected maximum at Incheon, the market’s zero-price logic is reinforced; if successive updates point to a hotter-than-expected inland air mass persisting over the airport, the main catalyst is a higher station maximum rather than any scheduled announcement.[1][3]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Seoul (Incheon) on August 4? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

Can prediction markets influence election outcomes?

Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.

How fast do political markets react to news?

High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.

Are political prediction markets legal in my country?

It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.