Highest temperature in Seoul on June 9?

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Market context

Seoul's highest temperature on 9 June 2026 will be measured at Incheon International Airport Station and resolved against historical weather data from Wunderground. Early June in Seoul typically falls within the onset of the rainy season, with average daily highs ranging from 24–27°C, though temperatures can exceed 30°C during heat waves or anomalously warm spells.

Historical records show Seoul experiences considerable year-to-year variability in early June. The Korea Meteorological Administration's 30-year climate normals indicate that temperatures above 28°C occur in roughly 30–40% of years on this date, whilst readings exceeding 32°C remain uncommon but not unprecedented. The 0% crowd probability suggests traders are pricing in either an expectation of below-average temperatures or treating this as a low-conviction market with sparse participation.

The primary catalyst affecting June 2026 temperatures will be the phase of the East Asian summer monsoon and any lingering influence from the North Pacific subtropical high-pressure system. Sea surface temperatures in the Yellow Sea and broader atmospheric patterns established by May will shape whether warm continental air masses dominate or cooler maritime influences prevail. Real-time forecasts from the Korea Meteorological Administration, typically issued 10 days prior to the settlement date, will provide the most actionable signal for traders reassessing probabilities closer to resolution.

Methodology

This page tracks Highest temperature in Seoul on June 9? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. Trump Prediction routes every trade through to Polymarket — at 0% fees.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

Where can I trade this market with the lowest fees?

On Trump 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?

Trump 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.

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, Trump Prediction 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.