**Trader consensus on Polymarket overwhelmingly favors 18°C as Cape Town's highest temperature on May 12, 2026, with 100% implied probability, driven by an intense cold front tracked by the South African Weather Service (SAWS).** Official SAWS forecasts specify a maximum of 18°C under cloudy skies, scattered showers, and gale-force northwesterly winds up to Orange Level 8 warning status, inhibiting solar heating and aligning with observed conditions of persistent overcast and precipitation through midday. This positioning reflects May's climatological autumn cooling—averaging 22°C highs but suppressed 3–4°C below normal by frontal dynamics—and recent model runs confirming minimal intensification potential. Scenarios challenging this include unlikely late-afternoon clearing for brief solar rebound to 19°C, pending final SAWS observations from Cape Town International Airport by evening. (112 words)
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 12?
18°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$33,461 Vol.
$33,461 Vol.
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%
$33,461 Vol.
$33,461 Vol.
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
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 10, 2026, 12:39 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
**Trader consensus on Polymarket overwhelmingly favors 18°C as Cape Town's highest temperature on May 12, 2026, with 100% implied probability, driven by an intense cold front tracked by the South African Weather Service (SAWS).** Official SAWS forecasts specify a maximum of 18°C under cloudy skies, scattered showers, and gale-force northwesterly winds up to Orange Level 8 warning status, inhibiting solar heating and aligning with observed conditions of persistent overcast and precipitation through midday. This positioning reflects May's climatological autumn cooling—averaging 22°C highs but suppressed 3–4°C below normal by frontal dynamics—and recent model runs confirming minimal intensification potential. Scenarios challenging this include unlikely late-afternoon clearing for brief solar rebound to 19°C, pending final SAWS observations from Cape Town International Airport by evening. (112 words)
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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