Current forecasts from regional models point to a daytime maximum of 17–18 °C in Cape Town on June 9 under typical Southern Hemisphere winter conditions, with the market’s tight clustering around those two outcomes reflecting small differences in predicted cloud cover, wind direction, and timing of any Atlantic cold front. Sea-surface temperatures in the Benguela Current moderate extremes, while variable southeasterly flow and limited insolation keep readings close to the long-term June average of roughly 17 °C. Traders appear to weigh the likelihood of brief sunny intervals that could push the high to 18 °C against the chance of earlier cloud build-up capping it at 17 °C, consistent with the uncertainty range shown in official guidance.
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 June 9?
18°C 41%
17°C 37%
19°C 19%
16°C 3.7%
$14,956 Vol.
$14,956 Vol.
13°C or below
<1%
14°C
<1%
15°C
<1%
16°C
4%
17°C
37%
18°C
41%
19°C
19%
20°C
3%
21°C
<1%
22°C
<1%
23°C or higher
<1%
18°C 41%
17°C 37%
19°C 19%
16°C 3.7%
$14,956 Vol.
$14,956 Vol.
13°C or below
<1%
14°C
<1%
15°C
<1%
16°C
4%
17°C
37%
18°C
41%
19°C
19%
20°C
3%
21°C
<1%
22°C
<1%
23°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 for the Cape Town International Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Jun 7, 2026, 12:08 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 for the Cape Town International Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.wunderground.com/history/daily/za/matroosfontein/FACTResolver
0x69c47De9D...Current forecasts from regional models point to a daytime maximum of 17–18 °C in Cape Town on June 9 under typical Southern Hemisphere winter conditions, with the market’s tight clustering around those two outcomes reflecting small differences in predicted cloud cover, wind direction, and timing of any Atlantic cold front. Sea-surface temperatures in the Benguela Current moderate extremes, while variable southeasterly flow and limited insolation keep readings close to the long-term June average of roughly 17 °C. Traders appear to weigh the likelihood of brief sunny intervals that could push the high to 18 °C against the chance of earlier cloud build-up capping it at 17 °C, consistent with the uncertainty range shown in official guidance.
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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