Official forecasts from agencies including the South African Weather Service point to a maximum of 19–21°C on August 25 under clear skies and moderate south-southeast winds of 20–30 km/h, consistent with late-winter climatology where average highs reach only 17–18°C. Strong insolation with minimal cloud cover supports daytime warming, while cool Atlantic marine air and steady onshore flow cap extremes. Market consensus favoring 21°C (39.5%) over 22°C (30%) or 20°C (15.5%) reflects minor ensemble spread in peak-hour model guidance, with traders weighing exact station readings at Cape Town International against historical variability of ±2–3°C on comparable days. Updated model runs and real-time observations tomorrow morning will likely refine resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Cape Town on August 25?
21°C 40%
22°C 30%
20°C 16%
23°C 11%
15°C or below
<1%
16°C
<1%
17°C
1%
18°C
1%
19°C
7%
20°C
16%
21°C
40%
22°C
30%
23°C
11%
24°C
3%
25°C or higher
<1%
21°C 40%
22°C 30%
20°C 16%
23°C 11%
15°C or below
<1%
16°C
<1%
17°C
1%
18°C
1%
19°C
7%
20°C
16%
21°C
40%
22°C
30%
23°C
11%
24°C
3%
25°C or higher
<1%
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=fact
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.
Market Opened: Aug 23, 2026, 12:58 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=factResolver
0x69c47De9D...The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=fact
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=factResolver
0x69c47De9D...Official forecasts from agencies including the South African Weather Service point to a maximum of 19–21°C on August 25 under clear skies and moderate south-southeast winds of 20–30 km/h, consistent with late-winter climatology where average highs reach only 17–18°C. Strong insolation with minimal cloud cover supports daytime warming, while cool Atlantic marine air and steady onshore flow cap extremes. Market consensus favoring 21°C (39.5%) over 22°C (30%) or 20°C (15.5%) reflects minor ensemble spread in peak-hour model guidance, with traders weighing exact station readings at Cape Town International against historical variability of ±2–3°C on comparable days. Updated model runs and real-time observations tomorrow morning will likely refine resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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