Highest temperature in Seoul on July 9?

Platform comparison

Market context

Seoul is currently experiencing extreme heat, with temperatures reaching 37.8°C on 8 July, the highest early-July reading ever recorded in the capital[7]. This market asks for the peak temperature at Incheon International Airport on 9 July 2026, yet the crowd-implied probability for any specific range is 0% YES, suggesting the settlement mechanism or data availability is in doubt rather than the weather itself being benign. Historically, July in South Korea is the monsoon season, with daily highs averaging 30°C (86°F) but often feeling like over 34°C (93°F) due to humidity exceeding 80%[2]. While Seoul typically warms to 21–28°C, recent anomalies show it can scorch far beyond this, making the 0% probability a stark outlier against the backdrop of a record-breaking heatwave[3][7].

Traders must monitor the official Wunderground data feed for the Incheon station specifically, as the market resolves on the highest temperature recorded for all times on 9 July, not just the daytime peak[1]. The critical catalyst is the timing of the monsoon rains; July is the rainiest month, with short, heavy downpours that can temporarily suppress temperatures before the lingering moisture creates a steamy, hotter feel hours later[2]. If the rain clears and the sun emerges, temperatures could spike rapidly, potentially matching or exceeding the 37.8°C record set just yesterday[7]. Watch for any announcements regarding data gaps or station maintenance from the Korea Meteorological Administration, as settlement depends entirely on the uninterrupted availability of this specific historical record[4]. The 0% probability likely reflects uncertainty over whether the data will be posted before the 2026-07-09 settlement window closes, rather than a prediction of cold weather.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Highest temperature in Seoul on July 9?. 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.

What are live sports odds on Polymarket?

Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.

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.

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.