Highest temperature in Paris on July 13?

Platform comparison

Market context

Paris faces a mid-July heat check on 13 July 2026, with the market pricing in a near-zero chance of any extreme spike above typical summer highs. The crowd-implied probability sits at 0% YES for any outlier outcome, while consensus heavily favours the 34°C range at 46%, followed by 35°C at 28% [1]. This reflects the city’s historical July pattern: daily highs usually climb from 74°F to 77°F (23–25°C), rarely exceeding 88°F (31°C) [2]. Even France’s record peak of 42.4°C in Paris occurred on 25 July 2019, not mid-month, and recent June 2026 data shows a high of just 98.1°F (36.7°C) on 26 June, suggesting the atmosphere is not primed for a record-breaking surge [3][6].

Traders should monitor the European heatwave schedule and any red-alert announcements from Météo-France, as the country recently endured its hottest day ever, with 44.3°C recorded in Landes and the Eiffel Tower closing early due to extreme conditions [8][5]. While that event occurred in late June, its persistence into July could act as a catalyst if the warm air mass stalls over Île-de-France. The key dependency is whether the current heatwave extends beyond the southwest; if it does, 35°C becomes a value spot against the 0% implied probability for higher extremes. Watch Wunderground’s real-time updates for Paris-Le Bourget, the official resolution source, as any sudden spike above 36°C would immediately invalidate the crowd’s 0% stance [1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Paris on July 13? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Who Will Win, which mirrors the Polymarket order book at 0% fees.

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 Who Will Win. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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 Who Will Win trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.