Highest temperature in Seoul on June 15?

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Market context

On 15 June 2026, the highest temperature recorded at Incheon International Airport Station will fall into one of several defined ranges, measured in degrees Celsius and sourced from Weather Underground's historical data portal. Seoul's mid-June climate typically sees daily highs between 26–28°C, though heat waves can push readings into the low 30s. The settlement hinges on a single daily maximum figure captured across all daylight and evening hours at the airport's official weather station.

Historical June temperature records for Seoul show considerable year-to-year variation. Between 2015 and 2024, mid-June highs ranged from 23°C during cooler, wetter years to 31°C during anomalous heat events. The current 0% crowd probability suggests traders are either absent from this market or awaiting clearer seasonal forecasts closer to the resolution date. Comparable weather markets on similar Asian airport stations typically see meaningful trading activity only within two to four weeks of settlement, when meteorological models stabilise.

Traders should monitor the Korea Meteorological Administration's seasonal outlooks, issued quarterly, and watch for El Niño or La Niña conditions that influence East Asian summer patterns. The East Asian monsoon onset, typically occurring in early June, materially affects Seoul's temperature trajectory. Any significant atmospheric pressure systems or tropical cyclone activity in the Western Pacific during early-to-mid June could shift conditions sharply. Weather Underground's historical archive remains the sole authoritative resolution source, so familiarity with its station-specific data collection methods is essential for accurate position-taking.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Is this market available outside the US?

Polymarket Legal 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's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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.