Highest temperature in Paris on July 3?

Platform comparison

Market context

The real-world event determining this market is the highest temperature recorded at Paris-Le Bourget Airport on 3 July 2026, measured in degrees Celsius. Current crowd-implied probability for a specific outcome sits at 0%, yet the frontrunner in the book is 28°C with a 78% probability, indicating the market expects a warm but not extreme day despite conflicting sentiment on the extremes.

Historical precedents frame this probability sharply: France recently recorded its hottest day ever with temperatures reaching 44.3°C in Landes, while the Paris region saw peaks near 44°C during an early heatwave that gripped Europe. However, June 2026 forecasts for Paris showed daily highs between 83°F and 88°F (roughly 28°C–31°C), suggesting the current 28°C frontrunner aligns with seasonal averages rather than the record-breaking extremes seen in the southwest.

Traders must watch the third heatwave forecast for France, which is expected to intensify from this weekend with temperatures potentially reaching 36°C to 40°C in the Paris region, according to Le Monde. This catalyst directly impacts book depth, as funding flows from payment on-ramps like Klarna and SEPA will surge if the heatwave confirms, driving liquidity into higher temperature ranges. The settlement window ending 2026-07-03T12:00:00Z means real-time Wunderground data will resolve the outcome, making the timing of the heatwave announcement critical for positioning before the final withdrawal rails close.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Highest temperature in Paris on July 3? 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.

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.

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).

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.