Highest temperature in Seoul on May 30?

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Active sub-markets

Market context

Seoul's maximum temperature on 30 May 2026 will be recorded at Incheon International Airport's official weather station and resolved against historical data via Wunderground's archive. The settlement window closes at midday UTC, meaning the full daily high must be captured before the market locks. For programmatic traders, this creates a dependency on Wunderground's data refresh cycle; the platform typically updates historical records within 24 hours of observation, though delays occasionally occur during system maintenance or data validation periods.

May temperatures in Seoul cluster around 23–28°C, with occasional outliers reaching 30°C during early heat waves. The 0% crowd probability suggests either extreme confidence in a specific temperature band or insufficient liquidity to establish meaningful odds. Historical May 30th data from prior years shows highs between 24–27°C in most seasons, with only 2015 and 2018 recording 29°C. Traders should cross-reference Wunderground's historical daily records for Incheon (RKSI station code) to calibrate baseline expectations and identify which temperature ranges carry genuine predictive uncertainty.

Seasonal weather patterns favour typical late-spring conditions, though East Asian monsoon systems can introduce volatility in late May. Traders monitoring long-range forecasts from the Korea Meteorological Administration or international weather models should track any anomalous pressure systems developing in April 2026. The specificity of using airport station data—rather than city centre readings—matters; Incheon's coastal location typically records slightly cooler maxima than central Seoul. Automated resolution verification via Wunderground's API is feasible for conditional order workflows.

Methodology

We track Highest temperature in Seoul on May 30? on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Is this market available outside the US?

Polymarket Bot 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'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.

What does it cost to trade on Polymarket Bot UK?

Zero. Polymarket Bot UK 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.

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.