Highest temperature in Seoul on July 23?

Platform comparison

Market context

Seoul’s peak temperature on 23 July will be set by the day’s warmest reading at Incheon International Airport, and the market is currently leaning heavily towards a **27°C** outcome, with **28°C** next in line. That pricing sits close to July norms rather than an extreme forecast: Seoul’s typical July high is about **28°C**, so the market is effectively centring on a warm but not exceptional summer afternoon.[1][2]

The **0% YES** probability is best read as a reflection of how narrowly this market is framed rather than as a view that heat is impossible. In a late-July climatological setting, the difference between adjacent temperature bands is often decided by cloud cover, rainfall timing, and sea-breeze effects rather than by broad seasonal warmth. Seoul’s July climate is humid, with rain on many days, which can cap the daytime maximum even when the air mass is hot.[2]

The main catalysts to watch are the short-range forecast updates for the Seoul metro area, any change in rainfall timing, and whether the warmest part of the day falls under clearer skies before convection builds. For traders, the key dependency is the actual Incheon Airport observation on the day, so a small shift in overnight models or morning cloud cover could be enough to move the settlement band by 1°C. Current market pricing already suggests the crowd expects a fairly ordinary summer high rather than a sharp spike.[1][2]

Sources: 1 · 2

Methodology

Sports-specific comparison page for Highest temperature in Seoul on July 23?. 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 or Manifold.

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.