Trader consensus on Polymarket closely clusters around 18°C (36.5%) and 19°C (30.5%) for Cape Town International Airport's highest temperature on May 2, driven by the latest South African Weather Service (SAWS) forecast of a 19°C maximum under partly cloudy skies and light winds, with supporting models like yr.no aligning at 19°C. Differentiating factors include variable southeasterly sea breeze strength, which could cap peaks at 18°C via coastal cooling, versus lighter northerly flows or reduced cloudiness pushing toward 20°C (19%). Autumn climatology averages 19°C highs, but ensemble spreads from GFS and ECMWF (17–21°C) highlight uncertainty in frontal timing; watch SAWS updates and overnight model runs for shifts ahead of resolution.
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 2?
Highest temperature in Cape Town on May 2?
18°C 37%
19°C 34%
20°C 18%
21°C 8%
15°C or below
<1%
16°C
1%
17°C
5%
18°C
37%
19°C
34%
20°C
18%
21°C
8%
22°C
2%
23°C
1%
24°C
<1%
25°C or higher
<1%
18°C 37%
19°C 34%
20°C 18%
21°C 8%
15°C or below
<1%
16°C
1%
17°C
5%
18°C
37%
19°C
34%
20°C
18%
21°C
8%
22°C
2%
23°C
1%
24°C
<1%
25°C or higher
<1%
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 30, 2026, 12:28 AM ET
Resolution Source
https://www.wunderground.com/history/daily/za/matroosfontein/FACTResolver
0x69c47De9D...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...Trader consensus on Polymarket closely clusters around 18°C (36.5%) and 19°C (30.5%) for Cape Town International Airport's highest temperature on May 2, driven by the latest South African Weather Service (SAWS) forecast of a 19°C maximum under partly cloudy skies and light winds, with supporting models like yr.no aligning at 19°C. Differentiating factors include variable southeasterly sea breeze strength, which could cap peaks at 18°C via coastal cooling, versus lighter northerly flows or reduced cloudiness pushing toward 20°C (19%). Autumn climatology averages 19°C highs, but ensemble spreads from GFS and ECMWF (17–21°C) highlight uncertainty in frontal timing; watch SAWS updates and overnight model runs for shifts ahead of resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions