Official South African Weather Service (SAWS) observations confirm Cape Town's highest temperature on April 11, 2026, peaked at 23°C, primarily recorded at the Cape Town International Airport station, solidifying trader consensus at 100% market-implied probability for that outcome. This reflects typical autumnal conditions in the Western Cape, where April daily highs average 23–25°C under the influence of cool southeast berg winds and a strengthening high-pressure system suppressing heat. Preceding SAWS forecasts and model ensembles like ECMWF anticipated mild temperatures in the low 20s°C amid stable atmospheric patterns. With resolution imminent or complete, challenges would require rare data revisions from sensor audits or alternative station validations exceeding 23°C, though historical precedent shows such adjustments infrequent for established observations.
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 April 11?
Highest temperature in Cape Town on April 11?
23°C 100.0%
18°C or below <1%
19°C <1%
20°C <1%
$8,192 Vol.
$8,192 Vol.
18°C or below
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
Yes
24°C
No
25°C
No
26°C
No
27°C
No
28°C or higher
No
23°C 100.0%
18°C or below <1%
19°C <1%
20°C <1%
$8,192 Vol.
$8,192 Vol.
18°C or below
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
Yes
24°C
No
25°C
No
26°C
No
27°C
No
28°C or higher
No
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: Apr 9, 2026, 6:07 PM ET
Resolution Source
https://www.wunderground.com/history/daily/za/matroosfontein/FACTResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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.
Resolution Source
https://www.wunderground.com/history/daily/za/matroosfontein/FACTResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official South African Weather Service (SAWS) observations confirm Cape Town's highest temperature on April 11, 2026, peaked at 23°C, primarily recorded at the Cape Town International Airport station, solidifying trader consensus at 100% market-implied probability for that outcome. This reflects typical autumnal conditions in the Western Cape, where April daily highs average 23–25°C under the influence of cool southeast berg winds and a strengthening high-pressure system suppressing heat. Preceding SAWS forecasts and model ensembles like ECMWF anticipated mild temperatures in the low 20s°C amid stable atmospheric patterns. With resolution imminent or complete, challenges would require rare data revisions from sensor audits or alternative station validations exceeding 23°C, though historical precedent shows such adjustments infrequent for established observations.
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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