Highest temperature in Seoul on June 8?

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Active sub-markets

Market context

Seoul's temperature on 8 June 2026 will be measured at Incheon International Airport Station, the official weather observation point for the region. The settlement hinges on Wunderground's historical data feed for that specific date, requiring traders to verify the exact methodology used by the station—whether readings capture peak afternoon heat or account for urban heat island effects that can skew airport measurements several degrees above city centre conditions.

Historical June temperatures in Seoul cluster between 24–28°C on average, though heat waves have pushed daily highs toward 32–35°C in recent years. The 0% crowd probability suggests either extreme confidence in moderate conditions or insufficient liquidity to establish a meaningful baseline. Comparable early-summer weather patterns from 2023–2025 show high volatility; June 2023 saw Seoul reach 33°C on multiple days, whilst 2024 remained cooler. Traders evaluating this market programmatically should cross-reference seasonal climate models and the Korea Meteorological Administration's extended forecasts, which typically become reliable 10–14 days before settlement.

The key catalyst is the East Asian monsoon onset, which typically arrives mid-June but occasionally stalls or accelerates by several days. Tropical cyclone activity in the Western Pacific during early June can suppress temperatures or trigger sudden heat spikes depending on system track. Monitoring the KMA's official 10-day outlook and comparing it against Wunderground's historical bias—which sometimes lags official Korean stations—will be essential for conditional order placement closer to the settlement window.

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket App UK, which mirrors the Polymarket order book directly.

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 App 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.

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 App UK?

Zero. Polymarket App 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.

Do I need to KYC for this market?

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