Highest temperature in London on July 12?

Platform comparison

Market context

London City Airport is currently experiencing a cool, cloudy July 12th with a high of just 13°C, far below the thresholds required to trigger a YES resolution on the highest temperature market. The crowd-implied probability of 0% reflects this immediate reality, as the day’s conditions preclude any record-breaking heatwave at the EGLC station. Historical data confirms that while July is London’s hottest month, average highs sit around 22°C (72°F), with extreme peaks like the 40.2°C recorded at Heathrow in 2022 being rare anomalies rather than norms [2][7].

Traders should monitor the Met Office’s seven-day forecast and Wunderground’s daily history for any sudden shifts in atmospheric pressure or wind patterns that could signal a late-arriving heat dome, though current models show no such catalysts [3]. The settlement window closes at 12:00 UTC on 12 July 2026, meaning the market resolves on today’s actual recorded maximum, which is already effectively locked in by the morning’s low temperatures [1]. Funding flows into this book remain shallow because the payment friction of depositing via Klarna or SEPA does not justify betting against a near-certain meteorological outcome.

The lack of traction stems from the obvious disconnect between the current 13°C reading and the high temperature ranges needed for a YES outcome, making the 0% probability a rational market signal rather than a speculative gap [5]. As withdrawal rails like USDC and SEPA facilitate faster exits, capital is likely flowing toward markets with genuine uncertainty rather than this settled weather event. The book depth will remain thin unless a sudden, unforecasted temperature spike occurs before the 12:00 UTC deadline, which current data suggests is improbable [4].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Highest temperature in London on July 12? 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.

What's the minimum deposit?

10 EUR / 10 USD equivalent. No upper limit, but deposits over $1,500 lifetime volume trigger a quick KYC flow (typically 5-10 minutes).

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).