Highest temperature in Amsterdam on August 17?

Platform comparison

Market context

On 17 August 2026, the highest temperature recorded at Amsterdam Airport Schiphol Station will determine this market's resolution. The settlement uses the Daily Observations table from Weather Underground rather than summary figures, a distinction that matters when intraday peaks diverge from headline highs. The current 0% crowd probability suggests traders view an extreme heat event as implausible for that date, though August in the Netherlands regularly produces temperatures in the mid-to-high 20s Celsius.

Historical August data from Schiphol shows that temperatures exceeding 30°C occur roughly once every two to three years during the month, with the station's all-time August record standing at 35.6°C (set in 2022). The 2023 and 2024 August periods saw peaks around 28–29°C, establishing a baseline expectation. The current zero probability likely reflects the market's assessment that extreme heat thresholds—typically 32°C or above—require specific atmospheric conditions (persistent high-pressure systems, continental air masses) that August forecasting models cannot yet reliably predict eighteen months ahead.

Traders monitoring this market should track European summer weather patterns as 2026 approaches, particularly the North Atlantic Oscillation and jet stream positioning in late July and early August. The UK Met Office and Royal Netherlands Meteorological Institute (KNMI) publish seasonal outlooks in June and July that may shift expectations. Any significant climate anomalies or heatwave forecasts issued in the weeks before settlement could trigger repricing, though the settlement window's closure on 17 August at noon GMT means real-time weather data becomes the sole arbiter once the day begins.

Methodology

This overview of Highest temperature in Amsterdam on August 17? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.

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Does Polymarket KYC apply to UK users?

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What is the legal difference between Polymarket and Betfair Exchange for UK traders?

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