Highest temperature in Seoul on July 28?

Platform comparison

Market context

Seoul experiences peak summer heat in late July, with the city regularly recording temperatures in the low-to-mid 30s Celsius during this period. The 28th falls within the height of the East Asian monsoon season, though precipitation patterns vary considerably year to year. Historical data from Incheon International Airport—the official measurement station for this market—shows July daily highs typically range between 28°C and 33°C, with occasional spikes above 34°C during heat waves.

The 0% crowd probability suggests traders are pricing in an expectation that the highest temperature will fall below the lowest available range bracket. This positioning appears cautious given Seoul's consistent summer patterns. July 2025 saw multiple days exceeding 32°C at Incheon, and comparable heat waves in 2018 and 2019 produced readings above 35°C during similar calendar dates. The monsoon's timing and intensity remain the primary variables—early-season rainfall can suppress temperatures, whilst high-pressure systems from the Tibetan plateau drive sustained heat.

Traders should monitor the Korea Meteorological Administration's extended forecasts from mid-July onwards, particularly their 10-day outlooks issued in the week preceding the 28th. Sea surface temperatures in the Yellow Sea and the position of the North Pacific high-pressure system typically determine whether Seoul experiences typical summer conditions or an exceptional heat event. Recent climate patterns show increased frequency of extreme heat days in late July, though individual year variability remains substantial.

Methodology

Football-specific comparison page for Highest temperature in Seoul on July 28?. 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.

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.