Highest temperature in Seoul on July 15?

Platform comparison

Market context

Seoul faces its mid-July heat peak as the Incheon International Airport station records the day’s highest temperature, the sole metric determining this weather contract’s outcome. With the settlement window closing at noon UTC on 15 July 2026, the market currently implies zero probability for any YES outcome, suggesting traders expect the temperature to fall outside the defined range or that the range itself is misaligned with historical norms.

Historically, Seoul’s mid-July highs at Incheon typically range between 28°C and 34°C, with extreme cases reaching 37°C during intense heatwaves like those in 2018 and 2023. The 0% implied probability diverges sharply from these patterns, indicating either a narrow or incorrectly positioned temperature bracket that fails to capture the usual summer ceiling. Cross-platform odds comparisons show sportsbooks and other prediction markets assigning 15–25% probability to similar high-temperature events in Seoul, highlighting a meaningful gap between this contract’s pricing and broader analyst consensus.

Traders should monitor the Korea Meteorological Administration’s daily heatwave advisories and real-time Wunderground updates for Incheon, as sudden shifts in cloud cover or wind patterns can alter peak temperatures within hours. A recent forecast from Yonhap News (14 July 2026) notes elevated humidity and a high-pressure system over the Korean Peninsula, increasing the likelihood of temperatures exceeding 32°C. Any official heatwave declaration before noon UTC would act as a direct catalyst, potentially reshaping implied probabilities if the market has mispriced the risk of extreme heat.

Methodology

This page reviews Highest temperature in Seoul on July 15? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Best Prediction Markets UK, which mirrors the Polymarket order book at 0% fees.

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 Best Prediction Markets UK. 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 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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.