Highest temperature in Seoul on May 30?

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Active sub-markets

Market context

Seoul's weather on 30 May 2026 will be measured at Incheon International Airport Station, where the highest temperature recorded across the full day determines the settlement range. Late May in Seoul typically sits in the low-to-mid 20s Celsius, though heat waves can push readings into the upper 20s or low 30s. The current 0% crowd probability suggests traders are either absent from this market or treating the outcome as predetermined—a signal that liquidity remains shallow and deposit friction may be limiting participation from UK-based traders using Klarna or SEPA rails.

Historical May temperatures at Incheon show considerable variance. Over the past decade, 30 May highs have ranged from 18°C to 29°C, with an average around 23°C. Years with above-average warmth typically coincide with early-season high-pressure systems moving northeast from the Pacific. The absence of trading activity here reflects a common pattern: niche weather markets struggle to attract capital until funding on-ramps (USDC withdrawals, Klarna settlement) reduce friction for casual traders. Book depth remains thin precisely because deposit and withdrawal costs deter small-stake participation.

Traders monitoring this market should track the Korea Meteorological Administration's forecasts released in late May, which typically gain accuracy within two weeks of the target date. Atmospheric patterns in early May—particularly the position of the North Pacific subtropical high and any tropical cyclone activity—will signal whether late-month conditions favour above or below-average temperatures. Until larger capital flows enter through streamlined payment channels, this market will likely remain lightly traded despite clear historical benchmarks for calibration.

Methodology

This page reviews Highest temperature in Seoul on May 30? 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 Polymarket Klarna UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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 Klarna 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.

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 does it cost to trade on Polymarket Klarna UK?

Zero. Polymarket Klarna 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 Klarna 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.