**Current forecasts from multiple models position 17°C as the most probable daily maximum for Cape Town on September 3, 2026, aligning with the 47.5% market-implied probability.** Early September climatology shows average highs near 18°C under spring conditions in the Southern Hemisphere, but today's southeasterly winds of 25–40 km/h, combined with 60–80% chances of showers and high cloud cover, are expected to limit afternoon warming. Morning observations around 11–12°C and model consensus (including GFS and local guidance) point to a peak near 16–17°C, with lower odds for 18°C or 19°C if clearing occurs earlier than anticipated. Traders are weighting real-time observational updates and short-range model runs, which carry typical uncertainty ranges of ±1–2°C for maximum temperature 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 September 3?
Highest temperature in Cape Town on September 3?
17°C 48%
18°C 32%
16°C 11%
19°C 8%
$19,282 Vol.
$19,282 Vol.
Sep 3, 2026
10°C or below
<1%
11°C
<1%
12°C
<1%
13°C
<1%
14°C
1%
15°C
5%
16°C
11%
17°C
48%
18°C
32%
19°C
8%
20°C or higher
2%
17°C 48%
18°C 32%
16°C 11%
19°C 8%
$19,282 Vol.
$19,282 Vol.
Sep 3, 2026
10°C or below
$6,413 Vol.
<1%
11°C
$1,301 Vol.
<1%
12°C
$1,300 Vol.
<1%
13°C
$755 Vol.
<1%
14°C
$575 Vol.
1%
15°C
$2,141 Vol.
5%
16°C
$1,947 Vol.
11%
17°C
$1,975 Vol.
48%
18°C
$1,789 Vol.
32%
19°C
$702 Vol.
8%
20°C or higher
$488 Vol.
2%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Cape Town International Airport Station in degrees Celsius on 3 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=fact
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.**Current forecasts from multiple models position 17°C as the most probable daily maximum for Cape Town on September 3, 2026, aligning with the 47.5% market-implied probability.** Early September climatology shows average highs near 18°C under spring conditions in the Southern Hemisphere, but today's southeasterly winds of 25–40 km/h, combined with 60–80% chances of showers and high cloud cover, are expected to limit afternoon warming. Morning observations around 11–12°C and model consensus (including GFS and local guidance) point to a peak near 16–17°C, with lower odds for 18°C or 19°C if clearing occurs earlier than anticipated. Traders are weighting real-time observational updates and short-range model runs, which carry typical uncertainty ranges of ±1–2°C for maximum temperature resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Cape Town International Airport Station in degrees Celsius on 3 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=fact
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=fact
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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: Sep 1, 2026, 12:58 AM ET
Volume
$19,282End Date
Sep 3, 2026Market Opened
Sep 1, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=factResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Cape Town International Airport Station in degrees Celsius on 3 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=fact
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.**Current forecasts from multiple models position 17°C as the most probable daily maximum for Cape Town on September 3, 2026, aligning with the 47.5% market-implied probability.** Early September climatology shows average highs near 18°C under spring conditions in the Southern Hemisphere, but today's southeasterly winds of 25–40 km/h, combined with 60–80% chances of showers and high cloud cover, are expected to limit afternoon warming. Morning observations around 11–12°C and model consensus (including GFS and local guidance) point to a peak near 16–17°C, with lower odds for 18°C or 19°C if clearing occurs earlier than anticipated. Traders are weighting real-time observational updates and short-range model runs, which carry typical uncertainty ranges of ±1–2°C for maximum temperature resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Cape Town International Airport Station in degrees Celsius on 3 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=fact
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=fact
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Volume
$19,282End Date
Sep 3, 2026Market Opened
Sep 1, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=factResolver
0x69c47De9D...**Current forecasts from multiple models position 17°C as the most probable daily maximum for Cape Town on September 3, 2026, aligning with the 47.5% market-implied probability.** Early September climatology shows average highs near 18°C under spring conditions in the Southern Hemisphere, but today's southeasterly winds of 25–40 km/h, combined with 60–80% chances of showers and high cloud cover, are expected to limit afternoon warming. Morning observations around 11–12°C and model consensus (including GFS and local guidance) point to a peak near 16–17°C, with lower odds for 18°C or 19°C if clearing occurs earlier than anticipated. Traders are weighting real-time observational updates and short-range model runs, which carry typical uncertainty ranges of ±1–2°C for maximum temperature resolution.
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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