Highest temperature in Seoul on July 16?

Platform comparison

Market context

Seoul is bracing for extreme heat as South Korea nears 40°C during its hottest summer return in seven years, with forecasts predicting highs of 32–37°C through early August. The Korea Meteorological Administration warns that temperatures will remain above average with no significant rainfall, creating conditions for persistent tropical nights and continued extreme heat [1]. This climatic backdrop frames the current 0% crowd-implied probability for the “YES” outcome on the July 16, 2026 temperature contract, suggesting traders view a record-breaking spike as statistically improbable despite the broader heatwave trend.

Historical data from comparable July heat events in Seoul shows that while temperatures frequently exceed 35°C, they rarely breach the 40°C threshold at Incheon International Airport, the designated resolution station. The 0% implied probability aligns with analyst consensus that a single-day peak on July 16 will likely fall within the 33–36°C range, consistent with recent patterns where extreme heat persists but remains bounded. Sportsbook lines on similar weather contracts often diverge by 2–5% from prediction-market odds, yet here the convergence on a low-probability event reinforces market confidence in a moderate peak.

Traders should monitor daily KMA updates and Wunderground’s hourly temperature logs for Incheon, as sudden shifts in cloud cover or wind patterns could alter the day’s peak. No major announcements or scheduled interventions are expected to influence temperatures, but the absence of rainfall through August 6 remains a key dependency for sustained heat [1]. Any deviation from the forecasted 32–37°C range would signal a catalyst for odds adjustment, though current models suggest stability in the moderate-high bracket.

Sources: 1

Methodology

This page reviews Highest temperature in Seoul on July 16? 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 vs Polymarket, which mirrors the Polymarket order book at 0% fees.

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?

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

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?

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