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 Cape Town International Airport Station in degrees Celsius on 21 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 Cape Town International Airport Station, available here: https://www.wunderground.com/history/daily/za/matroosfontein/FACT. 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 South African Weather Service guidance and numerical model consensus indicate partly cloudy, fine post-frontal conditions for the Western Cape on 21 August, favoring daytime maxima near 20–22°C. This positioning reflects modest warming after recent cold fronts, with reduced onshore flow and limited cold advection, placing outcomes slightly above the August climatological average high of roughly 17–19°C. Forecast uncertainty remains due to potential model spread in boundary-layer mixing and cloud cover, though current runs show low risk of significant deviation. Traders’ heaviest weighting on 21°C (38.5%) and 22°C (26.5%) aligns with these data, while probabilities decline sharply outside the 19–23°C envelope. Updated SAWS briefings and ensemble runs expected overnight will provide the next resolution-relevant inputs.