Latest numerical weather prediction models, including those aggregated by AccuWeather, project Cape Town's highest temperature on May 17 at around 24°C under a building high-pressure ridge, driving trader consensus to 50% implied probability for 24°C or higher and 35.5% for exactly 23°C. This follows the clearance of a disruptive cold front on May 11-12 that brought heavy rainfall, gale-force winds, and cooler conditions (e.g., 19°C peak on May 9), with post-frontal subsidence and sunny skies now enabling above-normal autumn highs versus the 20°C climatological average. South African Weather Service guidance supports fine, warm conditions, though sea breezes or residual low cloud could cap peaks; watch for afternoon SAWS updates refining short-range forecasts.
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 May 17?
Highest temperature in Cape Town on May 17?
20°C 34%
21°C 31%
19°C 18%
22°C 7%
NEW
NEW
May 17, 2026
14°C or below
1%
15°C
1%
16°C
2%
17°C
3%
18°C
4%
19°C
18%
20°C
34%
21°C
31%
22°C
7%
23°C
7%
24°C or higher
1%
20°C 34%
21°C 31%
19°C 18%
22°C 7%
NEW
NEW
May 17, 2026
14°C or below
$10 Vol.
1%
15°C
$75 Vol.
1%
16°C
$80 Vol.
2%
17°C
$20 Vol.
3%
18°C
$0 Vol.
4%
19°C
$68 Vol.
18%
20°C
$53 Vol.
34%
21°C
$5 Vol.
31%
22°C
$2 Vol.
7%
23°C
$0 Vol.
7%
24°C or higher
$103 Vol.
1%
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 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Cape Town International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Latest numerical weather prediction models, including those aggregated by AccuWeather, project Cape Town's highest temperature on May 17 at around 24°C under a building high-pressure ridge, driving trader consensus to 50% implied probability for 24°C or higher and 35.5% for exactly 23°C. This follows the clearance of a disruptive cold front on May 11-12 that brought heavy rainfall, gale-force winds, and cooler conditions (e.g., 19°C peak on May 9), with post-frontal subsidence and sunny skies now enabling above-normal autumn highs versus the 20°C climatological average. South African Weather Service guidance supports fine, warm conditions, though sea breezes or residual low cloud could cap peaks; watch for afternoon SAWS updates refining short-range forecasts.
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 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Cape Town International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Cape Town International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: May 15, 2026, 12:06 AM ET
Volume
$377End Date
May 17, 2026Market Opened
May 15, 2026, 12:06 AM ETResolution Source
https://www.wunderground.com/history/daily/za/matroosfontein/FACTThis 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 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Cape Town International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Latest numerical weather prediction models, including those aggregated by AccuWeather, project Cape Town's highest temperature on May 17 at around 24°C under a building high-pressure ridge, driving trader consensus to 50% implied probability for 24°C or higher and 35.5% for exactly 23°C. This follows the clearance of a disruptive cold front on May 11-12 that brought heavy rainfall, gale-force winds, and cooler conditions (e.g., 19°C peak on May 9), with post-frontal subsidence and sunny skies now enabling above-normal autumn highs versus the 20°C climatological average. South African Weather Service guidance supports fine, warm conditions, though sea breezes or residual low cloud could cap peaks; watch for afternoon SAWS updates refining short-range forecasts.
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 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Cape Town International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Cape Town International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$377End Date
May 17, 2026Market Opened
May 15, 2026, 12:06 AM ETResolution Source
https://www.wunderground.com/history/daily/za/matroosfontein/FACTLatest numerical weather prediction models, including those aggregated by AccuWeather, project Cape Town's highest temperature on May 17 at around 24°C under a building high-pressure ridge, driving trader consensus to 50% implied probability for 24°C or higher and 35.5% for exactly 23°C. This follows the clearance of a disruptive cold front on May 11-12 that brought heavy rainfall, gale-force winds, and cooler conditions (e.g., 19°C peak on May 9), with post-frontal subsidence and sunny skies now enabling above-normal autumn highs versus the 20°C climatological average. South African Weather Service guidance supports fine, warm conditions, though sea breezes or residual low cloud could cap peaks; watch for afternoon SAWS updates refining short-range forecasts.
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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