Highest temperature in Seoul on July 2?

Platform comparison

Market context

The real-world event hinges on whether Incheon International Airport records a temperature exceeding the threshold for the “highest” range on 2 July 2026, amid Seoul’s monsoon-driven July climate. Historical data frames this as a near-certain underdog: July in South Korea averages 28–32°C daytime highs, with 12 rainy days and humidity above 80%, often suppressing peak temperatures despite high heat indices[1][2]. Past July records show daily highs rarely breach 34°C even on sunny afternoons, and the monsoon season (late June to mid-July) concentrates heavy, short rainfalls that cool the air[1][3]. With the crowd-implied probability at 0% YES, consensus correctly treats this as a favourite outcome for the lower range; value, if any, lies only in contrarian spots betting on an unseasonal heat spike, though meteorological dependencies make this improbable.

Traders should monitor the Korea Meteorological Administration’s heatwave alerts and the timing of the monsoon’s retreat, as delayed rainfall could briefly elevate temperatures[7]. Recent forecasts indicate Seoul will stay hot and humid through the weekend, with rain spreading from Jeju to southern Korea but not yet affecting Incheon directly[4]. The key catalyst is whether the monsoon clears by 2 July, allowing unimpeded solar heating; however, July remains the wettest month, with 289 mm rainfall and 41% of days rainy, making sustained high peaks unlikely[2]. No major weather announcements are scheduled, but the Sinchon Water Gun Festival in late July hints at community-level heat mitigation, not meteorological shifts[1]. Given the 0% implied probability, the market reflects rational consensus; value spots are absent unless an unexpected heatwave alert emerges before settlement.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win 2026, which mirrors the Polymarket order book directly.

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.

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FAQ

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win 2026 trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.