Highest temperature in Paris on August 20?

Platform comparison

Market context

The Paris-Le Bourget Airport weather station will record its highest temperature on 20 August 2026, with settlement determined by the Daily Observations table rather than summary figures on Weather Underground. This distinction matters because intraday peak readings can differ materially from rounded daily highs, particularly during heat events when temperatures spike sharply in early afternoon hours before cooling.

August temperatures at Paris-Le Bourget historically peak between 24–28°C on average, though heat waves push readings into the low 30s. The summer of 2023 saw multiple days exceed 32°C across northern France, whilst the exceptional 2022 heatwave produced readings above 35°C in the Paris region. The 0% crowd probability suggests traders expect a relatively cool August day, though this baseline assumes typical seasonal patterns rather than accounting for the increasing frequency of anomalous heat events in western Europe over recent years.

Traders should monitor European weather forecasting models from mid-August onwards, particularly outputs from Météo-France and the European Centre for Medium-Range Weather Forecasts. Atmospheric pressure systems, jet stream positioning, and any Saharan dust intrusions will determine whether high-pressure systems establish over France. The settlement window closes at midday UTC on 20 August, meaning morning forecasts will be the final reliable indicator before resolution. Any significant heat advisory issued by French meteorological authorities in the days preceding would signal material upside risk to current market pricing.

Methodology

Sports-specific comparison page for Highest temperature in Paris on August 20?. 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.

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.

UK Frequently Asked Questions

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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.

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Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

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