Trader consensus on Cape Town’s lowest temperature for September 16 centers on 11°C (51% implied probability) amid closely matched odds for 9–10°C and 7°C or below, driven by latest model runs from GFS and similar systems projecting overnight minima of 11–13°C at key stations like Cape Town International. Clear skies after earlier showers promote radiative cooling, while persistent southeast winds near 15–25 mph enhance mixing and limit further drops below 10°C. Historical September baselines average around 12°C, but small variations in cloud cover timing or station-specific readings could shift the official minimum. Updated observations and final daily summaries expected overnight will resolve remaining model spread.
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 16?
9°C 94%
7°C or below 90%
10°C 47%
8°C 12%
$1,593 Vol.
$1,593 Vol.
7°C or below
90%
8°C
12%
9°C
94%
10°C
47%
11°C
51%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C or higher
<1%
9°C 94%
7°C or below 90%
10°C 47%
8°C 12%
$1,593 Vol.
$1,593 Vol.
7°C or below
90%
8°C
12%
9°C
94%
10°C
47%
11°C
51%
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 14, 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...Trader consensus on Cape Town’s lowest temperature for September 16 centers on 11°C (51% implied probability) amid closely matched odds for 9–10°C and 7°C or below, driven by latest model runs from GFS and similar systems projecting overnight minima of 11–13°C at key stations like Cape Town International. Clear skies after earlier showers promote radiative cooling, while persistent southeast winds near 15–25 mph enhance mixing and limit further drops below 10°C. Historical September baselines average around 12°C, but small variations in cloud cover timing or station-specific readings could shift the official minimum. Updated observations and final daily summaries expected overnight will resolve remaining model spread.
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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