Highest temperature in Seoul on June 22?

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Market context

The underlying event is the day’s **highest temperature at Incheon Intl Airport Station**, measured on 22 June and expressed in degrees Celsius. June in Seoul is usually early-summer weather rather than peak heat: typical daytime highs are often around the high 20s °C, while humidity and showers increase towards the end of the month as the monsoon period approaches.[1][2]

A **0% YES** implied probability is most naturally read as the market pricing in the event landing outside the YES band, rather than expecting an extreme heat outcome. That framing fits the seasonal baseline: Seoul’s June averages are warm but not exceptional, and comparable climate summaries put the month’s typical highs in the mid-to-high 20s °C, with the warmest days still materially short of the kind of spike that would push a temperature range deeply into the upper end.[1][3][7] For market access, German **GlüStV** treatment can matter because it may restrict participation from some Germany-based users depending on platform rules and local classification, while the **US CFTC** reach is relevant because certain event contracts can fall within US derivatives scrutiny even when the underlying reference is weather rather than sport or politics; “no-KYC up to $1,500” generally means smaller-value accounts may be opened or used with lighter identity checks, improving accessibility for low-stakes trading on this market, but not removing geo-blocks or compliance limits.

For catalysts, traders should watch the Korean Meteorological Administration’s short-range forecasts, any late shifts in the East Asian monsoon pattern, and same-day temperature trends at Incheon, because the market settles on the station’s recorded daily maximum rather than a citywide average.[5] AccuWeather’s June outlook for Seoul points to a wide spread between ordinary warm days and hotter outliers, which is the key comparison for judging whether the realised maximum stays near the mid-20s °C or lifts into the low 30s.[3]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Seoul on June 22? 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 Legal 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

Where can I trade this market with the lowest fees?

On Polymarket Legal UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 Legal UK?

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

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

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