Highest temperature in Seoul on July 23?

Platform comparison

Market context

Seoul’s afternoon peak on 23 July will be determined by the highest reading at Incheon International Airport Station, so the key question is not the citywide feel but whether the day gets a clean, hot climb before cloud, rain, or sea-breeze moderation cuts the maximum short. July in Seoul is normally warm and humid, with an average high around 28°C and a meaningful daily rain chance, so the market is really pricing how close the airport station gets to the top end of the seasonal range rather than whether summer heat is present at all.[2]

The current 0% YES on the specific market framing does not fit the broader temperature distribution: the listed crowd view elsewhere on the board already puts 27°C at 49% and 28°C at 30%, which is consistent with a market expecting a fairly ordinary July top rather than an extreme. That matters for book depth because these weather contracts often concentrate liquidity around the nearest whole-degree bins, and any friction in funding or withdrawing can reduce how quickly that balance changes; in practice, easier deposit flows and lower off-ramp costs usually support tighter, more active books. The stated use of Klarna, SEPA, and USDC on a payment-first venue is relevant here because those rails can attract different trader segments with different settlement preferences, which can change where the depth sits.

For traders, the main catalysts are the morning forecast updates, any rain timing shifts, and whether the station sits under persistent cloud cover or a hotter inland air mass. The settlement source is Wunderground’s daily history for Incheon Intl Airport Station, so intraday revision risk is driven by local observations rather than citywide headlines. If a monsoon boundary or late-day showers arrive earlier than expected, the ceiling temperature can stay pinned to the 26–28°C bands; if the sky clears and wind weakens, the higher bins become more plausible.[1][2]

Sources: 1 · 2

Methodology

This page compares Highest temperature in Seoul on July 23? 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

What does SOFORT cost as a deposit method?

Polymarket Klarna UK charges no fees for SOFORT. The only cost is the internal FX spread (typically <1%) on EUR→USDC conversion. SOFORT itself has no end-user fees — the platform absorbs acquirer costs.

Which payment methods are supported?

Klarna (Pay Now / Pay Later), SOFORT, SEPA bank transfer, credit card (Visa/Mastercard), Apple Pay, Google Pay, and direct USDC deposit on Polygon. Availability depends on your jurisdiction.

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.

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.