Highest temperature in Seoul on July 14?

Platform comparison

Market context

The Polymarket contract pricing this at 0% reflects traders' current assessment that Seoul's peak temperature on 14 July 2026 will fall outside the upper threshold being tested. Settlement hinges on the highest reading recorded at Incheon International Airport's weather station, measured in Celsius and verified through Wunderground's historical data. The conditional token structure means traders are essentially pricing the probability that a specific temperature range will be breached on that date, with USDC collateral locked across Polygon until the settlement window closes at midday UTC on the resolution date.

Seoul's July climate presents consistent patterns worth examining against this zero probability. Historical data shows mid-July temperatures in Seoul typically peak between 28–32°C, with extreme heat events occasionally pushing toward 35°C. The city's record high for July stands at 39.6°C, set in 2018 during an exceptional heatwave. Current pricing suggests the market is either anchored to a temperature range well above historical norms or reflects confidence in near-normal conditions for summer 2026. Comparable July markets from prior years show traders initially underestimating tail-risk heat events, though Seoul's urban heat island effect and airport location (which tends to record slightly cooler readings than central districts) may justify conservative positioning.

Traders monitoring this contract should track seasonal forecasting updates from the Korea Meteorological Administration, typically released in June, which provide three-month outlooks for temperature anomalies. El Niño or La Niña conditions entering 2026 could shift baseline expectations. The settlement mechanism's reliance on Wunderground's historical archive means verifying the exact station designation and measurement protocols now, before July, eliminates disputes at resolution.

Methodology

This page reviews Highest temperature in Seoul on July 14? 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 Kalshi UK, which mirrors 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

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.

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 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 Kalshi 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.