**Current forecasts from the South African Weather Service and international models converge on an overnight minimum near 11–13°C for Cape Town on September 3, driven by clear to partly cloudy skies, moderate southeast winds of 10–20 km/h, and radiative cooling under high pressure.** Hourly guidance shows temperatures falling from afternoon highs of 15–18°C to lows typically projected between 10–13°C, with several sources (including GFS-based outputs) highlighting 11–12°C as the most likely floor. Spring climatology supports this range, as September nights average around 10–12°C. The market’s heavy weighting toward 11°C reflects this consensus, while lower probabilities for 10°C or below account for possible model spread or localized cooling if winds weaken further. Updated official observations and final 24-hour minimum readings will determine resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Cape Town on September 3?
11°C 87%
10°C 28%
9°C 23%
8°C 2%
7°C or below
1%
8°C
2%
9°C
23%
10°C
28%
11°C
87%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C or higher
<1%
11°C 87%
10°C 28%
9°C 23%
8°C 2%
7°C or below
1%
8°C
2%
9°C
23%
10°C
28%
11°C
87%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C or higher
<1%
The resolution source for this market will be information from NOAA, specifically the lowest 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 1, 2026, 12:31 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 lowest 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...**Current forecasts from the South African Weather Service and international models converge on an overnight minimum near 11–13°C for Cape Town on September 3, driven by clear to partly cloudy skies, moderate southeast winds of 10–20 km/h, and radiative cooling under high pressure.** Hourly guidance shows temperatures falling from afternoon highs of 15–18°C to lows typically projected between 10–13°C, with several sources (including GFS-based outputs) highlighting 11–12°C as the most likely floor. Spring climatology supports this range, as September nights average around 10–12°C. The market’s heavy weighting toward 11°C reflects this consensus, while lower probabilities for 10°C or below account for possible model spread or localized cooling if winds weaken further. Updated official observations and final 24-hour minimum readings will determine 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