Highest temperature in Seoul on June 10?

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Market context

Seoul's weather on 10 June 2026 will be measured at Incheon International Airport Station, where the highest temperature recorded across the entire day determines the settlement range. Early summer conditions in Seoul typically see daily highs between 25–28°C in early June, though heat waves can push readings into the low 30s. The settlement mechanism relies on Wunderground's historical weather database, which records intraday temperature peaks with hourly granularity—a detail relevant for traders building automated monitoring systems, since the peak may occur during afternoon hours rather than at standard reporting times.

Historical June data from Incheon shows considerable year-to-year variance. Between 2015 and 2024, 10 June highs ranged from 20°C (2017) to 29°C (2019), with most years clustering between 24–27°C. The 0% crowd probability suggests traders are either heavily discounting extreme heat scenarios or treating this as a low-information market awaiting seasonal forecasts. By late April 2026, medium-range ensemble models from the Korea Meteorological Administration will provide actionable signals; traders monitoring the KMA's 10-day outlook or subseasonal forecasts from NOAA's Climate Prediction Center can establish positions ahead of consensus formation.

For programmatic approaches, the Wunderground API permits historical data retrieval, enabling backtesting against prior June distributions. Setting conditional orders around KMA announcements of heat advisories or upper-air pattern shifts would capture volatility spikes. The settlement window closes at midday UTC on 10 June, creating a compressed final-hour window where real-time observations from Incheon override all prior forecasts.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket Review UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket Review UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

What does it cost to trade on Polymarket Review UK?

Zero. Polymarket Review UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Review UK triggers a quick verification flow that finishes in minutes.

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.