Highest temperature in Seoul on June 20?

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Market context

The reading will hinge on the day’s **high temperature at Incheon International Airport Station**, not the citywide headline for Seoul, so traders should focus on the airport synoptic report and any late-afternoon warmth that can lift the day’s maximum into a higher bracket. June in Seoul is typically early-summer weather, with long daylight, rising humidity and average daytime highs around the mid-20s Celsius, while comparative guides place June highs in Seoul broadly around 19–28°C and note that late June is usually warmer and more humid than early June.[1][2][4]

That framework makes the current **1% YES** price consistent with a market that is still looking for an unusually hot outcome rather than a normal June day. Historical-style June averages for Seoul cluster around 26°C, with some sources showing typical warmest-day values near 28°C, while rainy-season commentary points to a transition towards more humidity and showers rather than extreme heat.[1][3][9] In regulatory terms, a German retail participant faces the GlüStV question because online prediction markets can fall within gambling-style restrictions depending on structure and localisation; in the US, CFTC reach is relevant where a contract is viewed as a derivatives instrument rather than a purely game-like wager. For accessibility, “no-KYC up to $1,500” means a user may be able to trade or withdraw within that cumulative threshold without submitting identity documents, but the limit does not remove jurisdictional or sanctions-related checks, and it is therefore only a partial access route for this market.

The main catalysts are straightforward: the evolution of the local weather setup into the afternoon, any higher-than-forecast temperature spikes, and whether showers or marine air prevent the airport from reaching a hotter range. Korean Meteorological Administration short-range forecasts use daytime highs as the maximum from 9 a.m. onward, which is useful context for intraday monitoring, while the resolution source explicitly depends on Wunderground’s daily history page for RKSI rather than a press statement or secondary summary.[7]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Seoul on June 20? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Polymarket KYC UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Is this market available outside the US?

Polymarket KYC UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What does it cost to trade on Polymarket KYC UK?

Zero. Polymarket KYC UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket KYC UK triggers a quick verification flow that finishes in minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.