Highest temperature in Seoul on July 20?

Platform comparison

Market context

Seoul is set to experience its peak summer heat on 20 July 2026, with the Incheon International Airport station serving as the official benchmark for the highest daily temperature. The market currently implies a 0% chance of the temperature falling into the lowest expected range, reflecting the region’s consistent trend of extreme heat during mid-July. Historical data shows July is Seoul’s hottest and wettest month, with average highs around 28°C but frequent spikes well above 35°C due to high humidity and urban heat effects[3].

Recent records underscore the severity of current conditions: in early July 2025, Seoul hit 37.1°C—the highest temperature ever recorded between 1–10 July since records began[1]. That year’s July was the second-hottest on record nationwide, with an average of 27.1°C, reinforcing a pattern of intensifying summer heat[2]. These precedents suggest that temperatures on 20 July 2026 will likely exceed 35°C, making lower-range outcomes highly improbable.

Traders should monitor daily weather bulletins from the Korea Meteorological Administration and real-time updates from Wunderground, which will provide the official settlement data. Any sudden shifts in monsoon activity or cloud cover could influence the peak temperature, though such deviations are historically rare in mid-July. With no major atmospheric disruptions forecast, the baseline expectation remains firmly in the high-temperature range.

Sources: 1 · 2 · 3

Methodology

Football-specific comparison page for Highest temperature in Seoul on July 20?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi (US-focused) or Manifold (play-money).

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

Are prediction markets better than sports betting?

Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.

When do sports markets resolve?

Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.

How fast do sports winnings settle?

Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.

What's the difference between match odds and outright odds?

Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.

Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.