Pronóstico: Highest temperature in Seoul on July 14?

Platform comparison

Market context

Seoul's peak temperature on 14 July 2026 will be measured at Incheon International Airport Station and settled against Wunderground's historical records. The market currently prices all temperature ranges at zero probability on Polygon, suggesting either insufficient liquidity or traders awaiting firmer seasonal data before committing USDC to conditional tokens. Settlement occurs at 12:00 UTC on the day itself, giving traders a narrow window to adjust positions once morning forecasts solidify.

Mid-July sits within Seoul's summer monsoon season, when daily highs typically range between 28–32°C, though heat waves can push readings above 35°C. Historical precedent matters here: the city recorded 39.6°C in July 2018 and 38.9°C in July 2015, establishing that extreme ranges remain plausible rather than outliers. Comparing recent Julys—2023 peaked at 31.2°C, whilst 2022 reached 33.1°C—reveals substantial year-to-year variance driven by Pacific high-pressure systems and monsoon timing.

Traders should monitor Korea Meteorological Administration forecasts released in early July 2026, which typically project 10–14 day outlooks with reasonable precision for temperature extremes. El Niño or La Niña conditions active in early 2026 will influence whether the North Pacific ridge strengthens sufficiently to trigger heat-dome conditions over the Korean peninsula. Typhoon activity in late June could also suppress July temperatures by increasing cloud cover and precipitation, a dependency worth tracking through June weather bulletins.

Methodology

We track Pronóstico: Highest temperature in Seoul on July 14? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.