Trader consensus on Polymarket has locked in 18°C as the highest temperature at Cape Town International Airport on April 28, 2026, at 100% implied probability, driven by the South African Weather Service (SAWS) latest forecast specifying a maximum of 18°C under partly cloudy skies, light morning winds shifting to moderate south-easterlies, and cool autumn conditions with minimums near 11°C. This aligns with short-range numerical weather prediction models showing limited solar insolation due to cloud cover and coastal influences suppressing highs above climatological April norms of 20–22°C. Realistic challenges include prolonged clearing skies boosting insolation or minor model biases, though official observations through evening will confirm, with resolution based on SAWS-recorded airport data.
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 28?
Highest temperature in Cape Town on April 28?
18°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$20,100 Vol.
$20,100 Vol.
Apr 28, 2026
12°C or below
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
Yes
19°C
No
20°C
No
21°C
No
22°C or higher
No
18°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$20,100 Vol.
$20,100 Vol.
Apr 28, 2026
12°C or below
$889 Vol.
No
13°C
$967 Vol.
No
14°C
$784 Vol.
No
15°C
$1,045 Vol.
No
16°C
$2,604 Vol.
No
17°C
$1,768 Vol.
No
18°C
$3,007 Vol.
Yes
19°C
$2,656 Vol.
No
20°C
$2,305 Vol.
No
21°C
$2,716 Vol.
No
22°C or higher
$1,359 Vol.
No
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 28 Apr '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.Trader consensus on Polymarket has locked in 18°C as the highest temperature at Cape Town International Airport on April 28, 2026, at 100% implied probability, driven by the South African Weather Service (SAWS) latest forecast specifying a maximum of 18°C under partly cloudy skies, light morning winds shifting to moderate south-easterlies, and cool autumn conditions with minimums near 11°C. This aligns with short-range numerical weather prediction models showing limited solar insolation due to cloud cover and coastal influences suppressing highs above climatological April norms of 20–22°C. Realistic challenges include prolonged clearing skies boosting insolation or minor model biases, though official observations through evening will confirm, with resolution based on SAWS-recorded airport data.
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 28 Apr '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: Apr 26, 2026, 12:38 AM ET
Volume
$20,100End Date
Apr 28, 2026Market Opened
Apr 26, 2026, 12:38 AM ETResolution Source
https://www.wunderground.com/history/daily/za/matroosfontein/FACTResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 28 Apr '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.Trader consensus on Polymarket has locked in 18°C as the highest temperature at Cape Town International Airport on April 28, 2026, at 100% implied probability, driven by the South African Weather Service (SAWS) latest forecast specifying a maximum of 18°C under partly cloudy skies, light morning winds shifting to moderate south-easterlies, and cool autumn conditions with minimums near 11°C. This aligns with short-range numerical weather prediction models showing limited solar insolation due to cloud cover and coastal influences suppressing highs above climatological April norms of 20–22°C. Realistic challenges include prolonged clearing skies boosting insolation or minor model biases, though official observations through evening will confirm, with resolution based on SAWS-recorded airport data.
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 28 Apr '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
$20,100End Date
Apr 28, 2026Market Opened
Apr 26, 2026, 12:38 AM ETResolution Source
https://www.wunderground.com/history/daily/za/matroosfontein/FACTResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on Polymarket has locked in 18°C as the highest temperature at Cape Town International Airport on April 28, 2026, at 100% implied probability, driven by the South African Weather Service (SAWS) latest forecast specifying a maximum of 18°C under partly cloudy skies, light morning winds shifting to moderate south-easterlies, and cool autumn conditions with minimums near 11°C. This aligns with short-range numerical weather prediction models showing limited solar insolation due to cloud cover and coastal influences suppressing highs above climatological April norms of 20–22°C. Realistic challenges include prolonged clearing skies boosting insolation or minor model biases, though official observations through evening will confirm, with resolution based on SAWS-recorded airport data.
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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