Highest temperature in Seoul on June 14?

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Market context

Seoul's maximum temperature on 14 June 2026 will be measured at Incheon International Airport's weather station and resolved against historical temperature bands. The settlement window closes at midday UTC, requiring traders to source verified data from Weather Underground's historical archive before the cutoff. This represents a straightforward meteorological event with a single, auditable data source—ideal for automated resolution workflows that query the platform's API against predetermined thresholds.

Historical June temperatures in Seoul cluster between 24–28°C, though extremes occasionally breach 30°C during early-season heat waves. The 0% crowd probability suggests traders are either absent from this market or systematically underweighting the likelihood of temperatures falling into higher ranges. Comparable June days at Incheon show that readings above 28°C occur roughly once every three years, whilst sub-20°C maxima are exceptionally rare. Reviewing Wunderground's five-year historical dataset for mid-June provides the empirical baseline needed to calibrate position sizing against the implied distribution.

Traders should monitor the Korean Meteorological Administration's 10-day forecast releases, typically issued Tuesdays and Fridays, which will refine expectations as June approaches. Subtropical high-pressure systems tracking northward from the Pacific are the primary catalyst for above-average temperatures during this period. Conditional order logic could be structured to automatically hedge positions if the KMA's ensemble models shift the probability of 28°C+ readings above 40%, allowing systematic traders to avoid manual monitoring whilst maintaining exposure to tail outcomes.

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Review UK, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket Review 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.

Is this market available outside the US?

Polymarket Review 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.