Highest temperature in Seoul on July 27?

Platform comparison

Market context

The event is the **highest temperature recorded at Incheon International Airport Station** on 27 July, and the market is currently pricing that outcome as effectively impossible at **0% YES**. That reading sits against a warm but not exceptional July setup for the Seoul–Incheon area: local forecasts for Monday point to showers in the capital region and daytime highs of **28–36°C** across South Korea, with Seoul itself forecast at **26–33°C**, which leaves room for a middling-to-warm reading rather than a record-like spike.[1]

Historically, July in Seoul is hot and humid, but the month also brings frequent cloud, rain and sea-breeze effects that can cap daytime extremes. Climatological July highs in Seoul are often around the high 20s to low 30s Celsius, and weather summaries note that rainfall and cloud are common enough to interrupt sustained heat.[5][10] That makes a “highest temperature” market more sensitive to the day’s warmest brief window than to the broader daily average, which is one reason a zero-YES price can persist when the forecast still looks seasonably hot.[1][10]

For traders, the main catalyst is the short-range forecast into the midday and early afternoon heating period, especially whether showers arrive early enough to suppress the airport reading or clear early enough to allow a sharper spike. Chosun’s forecast update points to morning showers in the capital region and expected rainfall of **5–40 mm in Seoul, Incheon and Gyeonggi**, a pattern that would tend to lean the market towards a lower high unless the cloud breaks quickly.[1] The key dependency is the Wunderground station observation itself at Incheon International Airport, so any last-minute shift in precipitation timing or cloud cover is the practical driver rather than broader seasonal context.[1]

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 on July 27? 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

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

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.

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.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.