Highest temperature in Seoul on July 18?

Platform comparison

Market context

Seoul's weather on 18 July 2026 will be measured by the highest temperature recorded at Incheon International Airport Station, the official observation point for the metropolitan area. July represents the height of South Korea's monsoon season, with afternoon highs typically ranging between 28–32°C, though heat waves can push readings above 35°C. The settlement will draw from Wunderground's historical database, which aggregates hourly readings throughout the day to establish the daily maximum.

Historical precedent suggests caution around the current 0% implied probability. Seoul has recorded temperatures exceeding 38°C on multiple occasions since 2010, including a 39.6°C peak in August 2018. July itself has seen highs of 36–37°C in recent years, particularly during early-to-mid summer heat waves driven by Pacific high-pressure systems. The absence of trading activity on this market likely reflects settlement timing rather than meteorological certainty; traders depositing via Klarna or SEPA transfers may face processing delays that make intraday weather markets less accessible than traditional equity or crypto pairs.

Traders monitoring this market should track Korea Meteorological Administration forecasts released in early July 2026, which typically provide 10-day outlooks with reasonable accuracy for temperature ranges. El Niño or La Niña conditions entering northern hemisphere summer can shift monsoon patterns significantly. Withdrawal friction—whether via USDC on-chain settlement or fiat rails—will determine whether profitable positions can be liquidated efficiently before the 12:00 UTC resolution window closes.

Methodology

This page compares Highest temperature in Seoul on July 18? with a focus on payment rails and deposit friction. Polymarket accepts USDC on Polygon only; Kalshi only ACH/Plaid (US only); Betfair card/SEPA in EU/UK; Manifold no deposit. Polymarket Klarna UK additionally offers Klarna and SOFORT as fiat on-ramps to USDC. Live odds reflect the Polymarket order book.

Resolution & payout

Settlement path determines payout latency. Polymarket settles on-chain (USDC, minutes). Broker frontends like Polymarket Klarna UK add Klarna/SOFORT as fiat withdrawal options with T+1 processing. Kalshi: USD via ACH (T+1 to T+3). Betfair: local currency via card/SEPA (T+1 to T+5).

FAQ

How does Klarna deposit work on Polymarket Klarna UK?

You enter the deposit amount in EUR/GBP, choose Klarna as the method, run through Klarna's standard authentication (Pay Later or Direct Bank Transfer), and Polymarket Klarna UK converts internally to USDC for the Polymarket order book. Processing: typically under 30 minutes.

How fast is SEPA deposit?

SEPA Instant: under 10 seconds. SEPA Standard: 1-2 business days. Both accepted fee-free; the internal USDC conversion runs automatically once EUR lands in the platform account.

Can I deposit with a credit card?

Yes, Visa and Mastercard. Credit card deposits carry a ~2.5% acquirer surcharge (standard for card payments). Apple Pay and Google Pay run on the same card rails — same surcharge.

How do withdrawals work?

Identical methods in reverse. SEPA withdrawal: T+1 (standard) or under 10 seconds (SEPA Instant). Klarna withdrawals process via bank-account refund. USDC withdrawal to external wallet: Polygon gas cost (typically $0.01).

Are payment details protected?

Yes. Card and bank details are never stored by Polymarket Klarna UK — they pass directly through PCI-DSS compliant payment service providers (Adyen, Stripe). Polymarket Klarna UK retains only transaction IDs and Klarna reference numbers for reconciliation.