Official observations from the South African Weather Service at Cape Town International Airport confirm the highest temperature on April 13, 2026, peaked at 28°C amid fine conditions with light southerly winds, matching SAWS pre-event forecasts of maximums near 28°C during autumn's typical mild weather patterns. This verified measurement from automated weather stations—accounting for factors like solar radiation, sea breezes, and Table Mountain's orographic influence—underpins the market's 100% implied probability for 28°C, representing trader consensus on authoritative data with real capital at stake. Scenarios challenging this include rare post hoc data revisions from quality control (e.g., sensor calibration errors), though historical precedents show such adjustments affect under 1% of daily records; final validated reports due imminently.
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 13?
Highest temperature in Cape Town on April 13?
28°C 100.0%
20°C or below <1%
21°C <1%
22°C <1%
$20,516 Vol.
$20,516 Vol.
20°C or below
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
No
28°C
Yes
29°C
No
30°C or higher
No
28°C 100.0%
20°C or below <1%
21°C <1%
22°C <1%
$20,516 Vol.
$20,516 Vol.
20°C or below
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
No
28°C
Yes
29°C
No
30°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 11, 2026, 12:09 AM 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 observations from the South African Weather Service at Cape Town International Airport confirm the highest temperature on April 13, 2026, peaked at 28°C amid fine conditions with light southerly winds, matching SAWS pre-event forecasts of maximums near 28°C during autumn's typical mild weather patterns. This verified measurement from automated weather stations—accounting for factors like solar radiation, sea breezes, and Table Mountain's orographic influence—underpins the market's 100% implied probability for 28°C, representing trader consensus on authoritative data with real capital at stake. Scenarios challenging this include rare post hoc data revisions from quality control (e.g., sensor calibration errors), though historical precedents show such adjustments affect under 1% of daily records; final validated reports due imminently.
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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