Current forecasts from multiple models indicate a minimum temperature near 14–15°C for Cape Town on September 13, driven by persistent cloud cover, light to moderate northwesterly winds, and scattered showers that limit nocturnal radiative cooling. These conditions reduce the potential for sharp temperature drops below 14°C while also preventing warmer readings above 15°C under overcast skies and high humidity. The tight split between 15°C and 13°C outcomes reflects model variability in exact overnight lows and localized urban heat effects, with traders weighing historical September baselines around 12–14°C against today’s stable synoptic pattern. Updated observations through the evening will likely refine resolution before market close.
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 13?
11°C or below 88%
12°C 88%
15°C 55%
13°C 45%
$1,010 Vol.
$1,010 Vol.
11°C or below
88%
12°C
88%
13°C
45%
14°C
5%
15°C
55%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C or higher
<1%
11°C or below 88%
12°C 88%
15°C 55%
13°C 45%
$1,010 Vol.
$1,010 Vol.
11°C or below
88%
12°C
88%
13°C
45%
14°C
5%
15°C
55%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C
<1%
21°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 11, 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 multiple models indicate a minimum temperature near 14–15°C for Cape Town on September 13, driven by persistent cloud cover, light to moderate northwesterly winds, and scattered showers that limit nocturnal radiative cooling. These conditions reduce the potential for sharp temperature drops below 14°C while also preventing warmer readings above 15°C under overcast skies and high humidity. The tight split between 15°C and 13°C outcomes reflects model variability in exact overnight lows and localized urban heat effects, with traders weighing historical September baselines around 12–14°C against today’s stable synoptic pattern. Updated observations through the evening will likely refine resolution before market close.
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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