Forecast models from sources like the South African Weather Service and international ensembles indicate a peak temperature near 28–30°C for Cape Town on September 8, driven by northerly to northwesterly flow under high pressure, clear skies, and daytime heating ahead of a strengthening southwesterly change. This exceeds the September climatological average high of about 19–20°C, with low humidity and light winds favoring rapid warming after dawn lows near 12–13°C. Trader consensus clusters tightly around 27–29°C bins because ensemble spreads and timing of the wind shift introduce modest uncertainty in the exact daily maximum, while historical September extremes above 30°C remain rare without stronger berg wind events. Updated model runs expected in the next 24–48 hours could refine these probabilities ahead of 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 8?
27°C 22%
28°C 20%
29°C 18%
26°C 13%
23°C or below
3%
24°C
2%
25°C
5%
26°C
13%
27°C
22%
28°C
20%
29°C
18%
30°C
8%
31°C
6%
32°C
3%
33°C or higher
1%
27°C 22%
28°C 20%
29°C 18%
26°C 13%
23°C or below
3%
24°C
2%
25°C
5%
26°C
13%
27°C
22%
28°C
20%
29°C
18%
30°C
8%
31°C
6%
32°C
3%
33°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 6, 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...Forecast models from sources like the South African Weather Service and international ensembles indicate a peak temperature near 28–30°C for Cape Town on September 8, driven by northerly to northwesterly flow under high pressure, clear skies, and daytime heating ahead of a strengthening southwesterly change. This exceeds the September climatological average high of about 19–20°C, with low humidity and light winds favoring rapid warming after dawn lows near 12–13°C. Trader consensus clusters tightly around 27–29°C bins because ensemble spreads and timing of the wind shift introduce modest uncertainty in the exact daily maximum, while historical September extremes above 30°C remain rare without stronger berg wind events. Updated model runs expected in the next 24–48 hours could refine these probabilities ahead of 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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