Highest temperature in Paris on July 9?

Platform comparison

Market context

A third heatwave is currently gripping Île-de-France, with Météo-France forecasting peak temperatures of up to 38°C in Paris on Friday, 9 July 2026. The orange alert remains active for the Paris-Montsouris and Paris-Le Bourget stations, where overnight lows failed to drop below 23°C, setting the stage for renewed spikes to 35–37°C, possibly reaching 38°C by afternoon. This intense thermal dome has already shattered historical records across Western Europe, creating a high-probability environment for extreme heat that directly contradicts the current 0% crowd-implied probability for the market.

Historical precedents from the 2026 European heatwaves show that July 9 temperatures in Paris frequently exceed 35°C, with recent data from the Paris-Le Bourget station recording 79°F (26.1°C) at 1:00 AM on the day itself, while broader regional peaks hit 38°C. Comparable cases from previous heatwaves, including the record-breaking June 28 event where Lutsk reached 36.7°C, suggest that Paris-Le Bourget is highly likely to breach the 34°C threshold, making the current zero probability a significant mispricing. Traders should monitor the official Wunderground daily report for Paris-Le Bourget, which will be published shortly after the settlement window closes, and watch for any updates from Météo-France regarding the persistence of the heatwave into the start of next week, as confirmed in their latest orange alert bulletin [1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Highest temperature in Paris on July 9?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi (US-focused) or Manifold (play-money).

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

Are prediction markets better than sports betting?

Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.

When do sports markets resolve?

Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.

Which sports markets are available?

Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.

What's the difference between match odds and outright odds?

Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.

Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.