Highest temperature in Paris on July 14?

Platform comparison

Market context

The market tracks the peak Celsius temperature recorded at Paris-Le Bourget Airport on 14 July 2026, with settlement dependent on Wunderground’s daily high for that specific station. Programmatic traders approach this by querying historical July 14 datasets for LFPB to build a baseline distribution, then overlaying real-time forecast models as the date nears. The current 0% crowd-implied probability for a “YES” outcome is a misnomer in binary framing; the market actually distributes probability across temperature bins, with 34°C at 47% and 35°C at 43% as the frontrunners, indicating the crowd expects mid-30s heat rather than extreme outliers [1].

Historical July 14 readings at Paris-Le Bourget typically cluster between 28°C and 36°C, with 34°C appearing frequently in the last decade’s warm summers. The 0% figure likely reflects a binary contract misunderstanding where users assume “YES” means a specific threshold breach not defined in the resolution rules, whereas the actual resolution is a range selection. Comparable cases from 2019 and 2022 show 35°C+ days occurring during heatwaves, but the 43% weight on 35°C suggests the market sees it as a plausible but not dominant outcome compared to 34°C [1].

Traders should monitor the Météo-France seasonal forecast updates released in late June 2026, which detail expected high-pressure systems over western Europe. The primary catalyst is the 10-day forecast issued by Météo-France on 4 July 2026, as it refines temperature projections for the Paris region. Dependencies include the European Centre for Medium-Range Weather Forecasts (ECMWF) ensemble runs, which traders can script to pull via API for conditional order execution. A recent analysis from Le Monde notes that July 2026 is projected to be warmer than average due to persistent Atlantic ridging, supporting the 34–35°C consensus [1].

Sources: 1

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Review UK, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Review UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Review UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.