This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section. This market will resolve to the temperature range that contains the highest temperature recorded at the Amsterdam Airport Schiphol Station in degrees Celsius on 23 Aug '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Amsterdam Airport Schiphol Station, available here: https://www.wunderground.com/history/daily/nl/schiphol/EHAM. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve until the first data point for the following date has been published on the resolution source. The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Recent forecast model consensus from the ECMWF, KNMI, and Met Office indicates a daytime maximum of 19–21°C in Amsterdam on August 23 under moderate northwesterly flow from the North Sea and partly cloudy skies, which has anchored trader consensus around these outcomes. This aligns closely with late-August climatology, where average highs reach approximately 20–22°C, with no strong warm advection or cold front expected to shift the range. Stable model runs over the past 48 hours have reinforced the 20°C bin as the modal outcome, while cloud cover and sea-breeze moderation limit upside risk. Official KNMI observations tomorrow will provide the final resolution data.