Recent South African Weather Service and model guidance from sources like AccuWeather and yr.no indicate partly cloudy conditions with light variable winds for Cape Town on August 17, supporting daytime maxima centered in the upper teens Celsius. This aligns with late-winter Mediterranean climatology where average highs reach 17–18°C, moderated by cool Atlantic influences and minimal warm advection or clear-sky heating. A recent weak cold front has reinforced cooler, stable air masses, limiting variability and explaining the market’s tight clustering around 19°C (38%) and 20°C (23.5%). Updated short-range forecasts ahead of the daily maximum will refine probabilities, with cloud cover increases or onshore flow as the main risks for cooler readings.
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 17?
Highest temperature in Cape Town on August 17?
19°C 38%
20°C 24%
18°C 21%
21°C 9%
NEW
NEW
Aug 17, 2026
14°C or below
<1%
15°C
1%
16°C
3%
17°C
6%
18°C
21%
19°C
38%
20°C
24%
21°C
9%
22°C
3%
23°C
<1%
24°C or higher
<1%
19°C 38%
20°C 24%
18°C 21%
21°C 9%
NEW
NEW
Aug 17, 2026
14°C or below
$16 Vol.
<1%
15°C
$1 Vol.
1%
16°C
$62 Vol.
3%
17°C
$159 Vol.
6%
18°C
$162 Vol.
21%
19°C
$103 Vol.
38%
20°C
$403 Vol.
24%
21°C
$226 Vol.
9%
22°C
$123 Vol.
3%
23°C
$154 Vol.
<1%
24°C or higher
$696 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 17 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.Recent South African Weather Service and model guidance from sources like AccuWeather and yr.no indicate partly cloudy conditions with light variable winds for Cape Town on August 17, supporting daytime maxima centered in the upper teens Celsius. This aligns with late-winter Mediterranean climatology where average highs reach 17–18°C, moderated by cool Atlantic influences and minimal warm advection or clear-sky heating. A recent weak cold front has reinforced cooler, stable air masses, limiting variability and explaining the market’s tight clustering around 19°C (38%) and 20°C (23.5%). Updated short-range forecasts ahead of the daily maximum will refine probabilities, with cloud cover increases or onshore flow as the main risks for cooler readings.
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 17 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 17 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 15, 2026, 4:08 PM ET
Volume
$2,106End Date
Aug 17, 2026Market Opened
Aug 15, 2026, 4:08 PM 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 17 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.Recent South African Weather Service and model guidance from sources like AccuWeather and yr.no indicate partly cloudy conditions with light variable winds for Cape Town on August 17, supporting daytime maxima centered in the upper teens Celsius. This aligns with late-winter Mediterranean climatology where average highs reach 17–18°C, moderated by cool Atlantic influences and minimal warm advection or clear-sky heating. A recent weak cold front has reinforced cooler, stable air masses, limiting variability and explaining the market’s tight clustering around 19°C (38%) and 20°C (23.5%). Updated short-range forecasts ahead of the daily maximum will refine probabilities, with cloud cover increases or onshore flow as the main risks for cooler readings.
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 17 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 17 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
$2,106End Date
Aug 17, 2026Market Opened
Aug 15, 2026, 4:08 PM ETResolution Source
https://www.wunderground.com/history/daily/za/matroosfontein/FACTResolver
0x69c47De9D...Recent South African Weather Service and model guidance from sources like AccuWeather and yr.no indicate partly cloudy conditions with light variable winds for Cape Town on August 17, supporting daytime maxima centered in the upper teens Celsius. This aligns with late-winter Mediterranean climatology where average highs reach 17–18°C, moderated by cool Atlantic influences and minimal warm advection or clear-sky heating. A recent weak cold front has reinforced cooler, stable air masses, limiting variability and explaining the market’s tight clustering around 19°C (38%) and 20°C (23.5%). Updated short-range forecasts ahead of the daily maximum will refine probabilities, with cloud cover increases or onshore flow as the main risks for cooler readings.
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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