Clear skies and moderate southeasterly winds are driving Cape Town's afternoon maximum on September 5, with official forecasts and model consensus centering on 21–23 °C. Springtime insolation under a stable high-pressure ridge supports gradual warming, while the cool Benguela Current and fresh to strong SE flow limit further rise by enhancing mixing and advection. Minor differences among leading outcomes (23 °C versus 24 °C) hinge on small variations in peak wind gusts, boundary-layer mixing, and exact timing of the daily maximum at the primary reporting station. Updated short-range model runs and real-time observations from the South African Weather Service will refine the final recorded peak before 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 September 5?
24°C 48%
23°C 33%
25°C 12%
22°C 10%
$14,973 Vol.
$14,973 Vol.
20°C or below
1%
21°C
1%
22°C
10%
23°C
33%
24°C
48%
25°C
12%
26°C
3%
27°C
2%
28°C
<1%
29°C
<1%
30°C or higher
<1%
24°C 48%
23°C 33%
25°C 12%
22°C 10%
$14,973 Vol.
$14,973 Vol.
20°C or below
1%
21°C
1%
22°C
10%
23°C
33%
24°C
48%
25°C
12%
26°C
3%
27°C
2%
28°C
<1%
29°C
<1%
30°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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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: Sep 3, 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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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...Clear skies and moderate southeasterly winds are driving Cape Town's afternoon maximum on September 5, with official forecasts and model consensus centering on 21–23 °C. Springtime insolation under a stable high-pressure ridge supports gradual warming, while the cool Benguela Current and fresh to strong SE flow limit further rise by enhancing mixing and advection. Minor differences among leading outcomes (23 °C versus 24 °C) hinge on small variations in peak wind gusts, boundary-layer mixing, and exact timing of the daily maximum at the primary reporting station. Updated short-range model runs and real-time observations from the South African Weather Service will refine the final recorded peak before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions