Highest temperature in Paris on August 6?

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Market context

Paris is in a cooler spell than the late-June heat that pushed the city to 40.9°C, with local forecasts for 6 August clustering around the mid-20s Celsius and one Paris forecast calling for about 26°C under mostly sunny skies.[12][18] That makes the current 0% crowd estimate easy to understand: on the evidence available today, the day looks more like a standard summer afternoon than a record-chasing heat event.[4][6][12]

Historical comparables matter here because Paris can still run hot when a blocking ridge sets up over western Europe. The city’s modern benchmark is 42.6°C at Paris-Montsouris in July 2019, and the June 2026 heatwave showed that Paris can briefly approach 41°C when extreme continental heat reaches France.[15][18] Against that backdrop, any market tied to a single day’s maximum temperature is usually driven less by the monthly average and more by whether a late-summer heat plume, cloud cover, or a cooler maritime flow dominates the afternoon.[1][4][15]

For traders, the main catalysts are the next round of Météo-France and local Paris forecasts, especially any change in the expected high, cloud cover, or wind direction over the final morning before settlement. A shift from the mid-20s into the low 30s would materially alter the distribution, but the present published outlook still points to a relatively benign day.[12][4] The key dependency is whether the forecast heat ridge rebuilds over northern France, as happened in June, or whether conditions stay near seasonal norms.[18][1]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Sports-specific comparison page for Highest temperature in Paris on August 6?. 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 or Manifold.

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