Trader consensus on an 18°C high for Cape Town on September 16, 2026, reflects alignment across global forecast models and real-time observations showing a daily maximum near that threshold. Clear skies, southeast winds of 15–25 mph, and dry air have supported gradual afternoon warming to around 18°C, consistent with GFS guidance and station data tracking temperatures peaking in the late afternoon. This positioning draws from the wisdom of crowds incorporating current pressure trends near 1030 mb and low precipitation probability. Minor deviations could arise from station-specific microclimates or final official verification by the South African Weather Service, though current conditions leave little room for outcomes outside 17–19°C.
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 16?
Highest temperature in Cape Town on September 16?
18°C 100.0%
11°C or below <1%
12°C <1%
13°C <1%
$28,416 Vol.
$28,416 Vol.
Sep 16, 2026
11°C or below
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
Yes
19°C
No
20°C
No
21°C or higher
No
18°C 100.0%
11°C or below <1%
12°C <1%
13°C <1%
$28,416 Vol.
$28,416 Vol.
Sep 16, 2026
11°C or below
$1,508 Vol.
No
12°C
$399 Vol.
No
13°C
$271 Vol.
No
14°C
$271 Vol.
No
15°C
$1,565 Vol.
No
16°C
$3,494 Vol.
No
17°C
$5,065 Vol.
No
18°C
$5,589 Vol.
Yes
19°C
$3,959 Vol.
No
20°C
$3,628 Vol.
No
21°C or higher
$2,666 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Cape Town International Airport Station in degrees Celsius on 16 Sep '26.
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.Trader consensus on an 18°C high for Cape Town on September 16, 2026, reflects alignment across global forecast models and real-time observations showing a daily maximum near that threshold. Clear skies, southeast winds of 15–25 mph, and dry air have supported gradual afternoon warming to around 18°C, consistent with GFS guidance and station data tracking temperatures peaking in the late afternoon. This positioning draws from the wisdom of crowds incorporating current pressure trends near 1030 mb and low precipitation probability. Minor deviations could arise from station-specific microclimates or final official verification by the South African Weather Service, though current conditions leave little room for outcomes outside 17–19°C.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Cape Town International Airport Station in degrees Celsius on 16 Sep '26.
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.
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 14, 2026, 12:58 AM ET
Volume
$28,416End Date
Sep 16, 2026Market Opened
Sep 14, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=factResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Cape Town International Airport Station in degrees Celsius on 16 Sep '26.
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.Trader consensus on an 18°C high for Cape Town on September 16, 2026, reflects alignment across global forecast models and real-time observations showing a daily maximum near that threshold. Clear skies, southeast winds of 15–25 mph, and dry air have supported gradual afternoon warming to around 18°C, consistent with GFS guidance and station data tracking temperatures peaking in the late afternoon. This positioning draws from the wisdom of crowds incorporating current pressure trends near 1030 mb and low precipitation probability. Minor deviations could arise from station-specific microclimates or final official verification by the South African Weather Service, though current conditions leave little room for outcomes outside 17–19°C.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Cape Town International Airport Station in degrees Celsius on 16 Sep '26.
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.
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.
Volume
$28,416End Date
Sep 16, 2026Market Opened
Sep 14, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=factResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on an 18°C high for Cape Town on September 16, 2026, reflects alignment across global forecast models and real-time observations showing a daily maximum near that threshold. Clear skies, southeast winds of 15–25 mph, and dry air have supported gradual afternoon warming to around 18°C, consistent with GFS guidance and station data tracking temperatures peaking in the late afternoon. This positioning draws from the wisdom of crowds incorporating current pressure trends near 1030 mb and low precipitation probability. Minor deviations could arise from station-specific microclimates or final official verification by the South African Weather Service, though current conditions leave little room for outcomes outside 17–19°C.
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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