Highest temperature in Seoul on June 11?

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Market context

Seoul experiences early summer conditions in mid-June, with the East Asian monsoon season beginning around this time. Historical data from Incheon International Airport shows June temperatures typically range between 20–28°C, though heat waves can push daily highs into the low 30s. The 0% crowd probability suggests traders are pricing in either scepticism about extreme heat or uncertainty around the specific settlement mechanics tied to Wunderground's Incheon station readings.

June 11th sits at the threshold between late spring and full monsoon onset. Over the past decade, Seoul's highest June temperatures have occasionally exceeded 30°C during early heat waves, but sustained peaks above 32°C remain uncommon before mid-to-late June. The current probability distribution reflects baseline seasonal expectations rather than any anomalous weather pattern; traders should monitor whether atmospheric pressure systems shift earlier than typical, as a stalled high-pressure system could drive temperatures into ranges currently underpriced.

The Korea Meteorological Administration publishes 10-day forecasts roughly one week before settlement. Traders should watch for any advisory notices regarding heat waves or unusual pressure systems in early June 2026. Wunderground's historical data for Incheon has proven reliable for settlement purposes on comparable markets, though the specific station location—an airport environment—can record slightly different maxima than central Seoul measurements. The settlement window closes at midday UTC, meaning final temperature readings will be locked shortly after local afternoon peaks.

Methodology

This page reviews Highest temperature in Seoul on June 11? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Champions League Prediction — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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 Champions League Prediction, 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?

Champions League Prediction 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 Champions League Prediction?

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

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Champions League Prediction triggers a quick verification flow that finishes in minutes.