Highest temperature in London on August 14?

Platform comparison

Market context

London City Airport's weather station will record the daily maximum temperature on 14 August 2026, with settlement determined by the granular Daily Observations dataset rather than summary figures. The market resolves to whichever temperature band captures that peak reading in degrees Celsius. Current crowd pricing reflects deep uncertainty about summer heat patterns two years forward, with zero probability mass assigned to any single outcome—a sign that early liquidity remains thin and deposit flows have yet to concentrate trader capital into this window.

Historical August temperatures at London City Airport cluster between 20–27°C, though the station has recorded extremes ranging from 16°C to 32°C across the month since records began. The 0% implied probability suggests the market lacks sufficient funded participants to establish baseline expectations; comparable weather markets typically show 5–15% probability density across plausible ranges once traders with SEPA or USDC deposit access begin positioning. The absence of any traction here indicates book depth will depend entirely on whether payment friction—deposit minimums, Klarna settlement timing, or withdrawal rail delays—can be resolved before traders commit capital.

Catalysts for this market centre on seasonal weather forecasting updates, which the UK Met Office typically releases 14 days in advance. Traders monitoring August 2026 conditions should watch for any El Niño or Atlantic Oscillation signals that emerge in summer 2026 climate outlooks. Until deposit flows improve and on-ramp friction eases, the market will remain a placeholder; once liquidity pools form, historical volatility and climate anomalies will drive meaningful price discovery.

Methodology

This page compares Highest temperature in London on August 14? 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).

UK Frequently Asked Questions

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 UK traders use Klarna to deposit on Polymarket?

Polymarket does not natively accept Klarna. To fund a Polymarket account from the UK, you must first purchase USDC via a crypto exchange (Coinbase UK, Kraken) or Revolut, then transfer to a Polygon-compatible wallet. Some third-party on-ramps (MoonPay, Transak) accept UK debit cards and may support Klarna buy-now-pay-later for crypto purchases.

What payment methods can UK users use for Polymarket?

UK traders typically use: (1) Coinbase UK or Kraken — buy USDC with GBP debit card or bank transfer; (2) Revolut — buy crypto and send to wallet; (3) MoonPay or Transak — Visa/Mastercard UK debit card directly to USDC on Polygon. Standard GBP-to-USDC conversion fees range from 0.5–2.5%.

How long do Polymarket withdrawals take for UK users?

Polymarket withdrawals to your Polygon wallet are instant (on-chain). Converting USDC back to GBP via Coinbase UK or Kraken typically takes 1–3 business days for bank transfer, or near-instant for Revolut. Polygon gas fees are minimal (<$0.01 per transaction).