Traders assign overwhelming 99.5% implied probability to a 19°C high in Cape Town on August 23 because official South African Weather Service guidance and numerical models show a strong South Atlantic High bringing mostly clear skies, moderate southerly winds, and morning mist that caps daytime warming near the seasonal average of 17–18°C. This setup favors limited insolation and efficient mixing of cooler maritime air, consistent with typical mid-winter conditions under high pressure. A realistic shift could occur if the ridge weakens or winds turn northerly, allowing greater solar heating and pushing readings to 20–21°C, or if unexpected low cloud develops and holds temperatures closer to 17°C; updated model runs or official observations will clarify these variables before 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 August 23?
Highest temperature in Cape Town on August 23?
19°C 99.5%
20°C <1%
23°C or higher <1%
13°C or below <1%
$24,237 Vol.
$24,237 Vol.
Aug 23, 2026
13°C or below
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
100%
20°C
<1%
21°C
<1%
22°C
<1%
23°C or higher
<1%
19°C 99.5%
20°C <1%
23°C or higher <1%
13°C or below <1%
$24,237 Vol.
$24,237 Vol.
Aug 23, 2026
13°C or below
$250 Vol.
<1%
14°C
$94 Vol.
<1%
15°C
$753 Vol.
<1%
16°C
$1,011 Vol.
<1%
17°C
$1,710 Vol.
<1%
18°C
$4,195 Vol.
<1%
19°C
$3,685 Vol.
100%
20°C
$3,258 Vol.
<1%
21°C
$3,491 Vol.
<1%
22°C
$3,259 Vol.
<1%
23°C or higher
$2,531 Vol.
<1%
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Cape Town International Airport Station in degrees Celsius on 23 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Cape Town International Airport Station, available here: https://www.wunderground.com/history/daily/za/matroosfontein/FACT.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.Traders assign overwhelming 99.5% implied probability to a 19°C high in Cape Town on August 23 because official South African Weather Service guidance and numerical models show a strong South Atlantic High bringing mostly clear skies, moderate southerly winds, and morning mist that caps daytime warming near the seasonal average of 17–18°C. This setup favors limited insolation and efficient mixing of cooler maritime air, consistent with typical mid-winter conditions under high pressure. A realistic shift could occur if the ridge weakens or winds turn northerly, allowing greater solar heating and pushing readings to 20–21°C, or if unexpected low cloud develops and holds temperatures closer to 17°C; updated model runs or official observations will clarify these variables before resolution.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Cape Town International Airport Station in degrees Celsius on 23 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Cape Town International Airport Station, available here: https://www.wunderground.com/history/daily/za/matroosfontein/FACT.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Cape Town International Airport Station in degrees Celsius on 23 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Cape Town International Airport Station, available here: https://www.wunderground.com/history/daily/za/matroosfontein/FACT.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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: Aug 21, 2026, 12:58 AM ET
Volume
$24,237End Date
Aug 23, 2026Market Opened
Aug 21, 2026, 12:58 AM ETResolution Source
https://www.wunderground.com/history/daily/za/matroosfontein/FACTResolver
0x69c47De9D...This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Cape Town International Airport Station in degrees Celsius on 23 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Cape Town International Airport Station, available here: https://www.wunderground.com/history/daily/za/matroosfontein/FACT.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.Traders assign overwhelming 99.5% implied probability to a 19°C high in Cape Town on August 23 because official South African Weather Service guidance and numerical models show a strong South Atlantic High bringing mostly clear skies, moderate southerly winds, and morning mist that caps daytime warming near the seasonal average of 17–18°C. This setup favors limited insolation and efficient mixing of cooler maritime air, consistent with typical mid-winter conditions under high pressure. A realistic shift could occur if the ridge weakens or winds turn northerly, allowing greater solar heating and pushing readings to 20–21°C, or if unexpected low cloud develops and holds temperatures closer to 17°C; updated model runs or official observations will clarify these variables before resolution.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Cape Town International Airport Station in degrees Celsius on 23 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Cape Town International Airport Station, available here: https://www.wunderground.com/history/daily/za/matroosfontein/FACT.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Cape Town International Airport Station in degrees Celsius on 23 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Cape Town International Airport Station, available here: https://www.wunderground.com/history/daily/za/matroosfontein/FACT.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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
$24,237End Date
Aug 23, 2026Market Opened
Aug 21, 2026, 12:58 AM ETResolution Source
https://www.wunderground.com/history/daily/za/matroosfontein/FACTResolver
0x69c47De9D...Traders assign overwhelming 99.5% implied probability to a 19°C high in Cape Town on August 23 because official South African Weather Service guidance and numerical models show a strong South Atlantic High bringing mostly clear skies, moderate southerly winds, and morning mist that caps daytime warming near the seasonal average of 17–18°C. This setup favors limited insolation and efficient mixing of cooler maritime air, consistent with typical mid-winter conditions under high pressure. A realistic shift could occur if the ridge weakens or winds turn northerly, allowing greater solar heating and pushing readings to 20–21°C, or if unexpected low cloud develops and holds temperatures closer to 17°C; updated model runs or official observations will clarify these variables before 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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