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icon for Highest temperature in Cape Town on September 4?

Highest temperature in Cape Town on September 4?

icon for Highest temperature in Cape Town on September 4?

Highest temperature in Cape Town on September 4?

Sep 3

Sep 4

Sep 5

Sep 3

Sep 4

Sep 5

20°C 49%

19°C 21%

21°C 21%

22°C 4.5%

Polymarket
NEW

20°C 49%

19°C 21%

21°C 21%

22°C 4.5%

Polymarket
NEW

14°C or below

$257 Vol.

<1%

15°C

$114 Vol.

<1%

16°C

$369 Vol.

<1%

17°C

$290 Vol.

<1%

18°C

$279 Vol.

4%

19°C

$3,436 Vol.

21%

20°C

$781 Vol.

49%

21°C

$1,155 Vol.

21%

22°C

$734 Vol.

5%

23°C

$163 Vol.

1%

24°C or higher

$239 Vol.

<1%

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 4 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.**Strong southeast winds and post-frontal clearing are positioning 19–21°C as the dominant outcomes for Cape Town’s maximum temperature on September 4.** A cut-off low and associated cold front brought cooler, wetter conditions on September 3, with highs near 16–18°C and gusty SE winds. Model consensus from sources including the Met Office, WeatherBug, and local forecasts now shows rapid clearing overnight, with dry, sunny skies and persistent 20–25 mph SE flow expected to limit daytime warming to the upper teens to low 20s Celsius. This aligns with typical early-spring climatology after frontal passages, where rapid stabilization caps temperatures near 19–20°C at official stations. Trader positioning reflects this tight forecast range, with 20°C holding the highest implied probability amid low uncertainty in the latest model runs.

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 4 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.
Volume
$7,815
End Date
Sep 4, 2026
Market Opened
Sep 2, 2026, 12:58 AM ET

Resolution Source

https://www.weather.gov/wrh/timeseries?site=fact

Resolver

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 4 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.
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 4 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.**Strong southeast winds and post-frontal clearing are positioning 19–21°C as the dominant outcomes for Cape Town’s maximum temperature on September 4.** A cut-off low and associated cold front brought cooler, wetter conditions on September 3, with highs near 16–18°C and gusty SE winds. Model consensus from sources including the Met Office, WeatherBug, and local forecasts now shows rapid clearing overnight, with dry, sunny skies and persistent 20–25 mph SE flow expected to limit daytime warming to the upper teens to low 20s Celsius. This aligns with typical early-spring climatology after frontal passages, where rapid stabilization caps temperatures near 19–20°C at official stations. Trader positioning reflects this tight forecast range, with 20°C holding the highest implied probability amid low uncertainty in the latest model runs.

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 4 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.
Volume
$7,815
End Date
Sep 4, 2026
Market Opened
Sep 2, 2026, 12:58 AM ET

Resolution Source

https://www.weather.gov/wrh/timeseries?site=fact

Resolver

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 4 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.

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Frequently Asked Questions

"Highest temperature in Cape Town on September 4?" is a prediction market on Polymarket with 11 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "20°C" at 49%, followed by "19°C" at 21%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 49¢ implies that the market collectively assigns a 49% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"Highest temperature in Cape Town on September 4?" is a newly created market on Polymarket, launched on Sep 2, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "Highest temperature in Cape Town on September 4?," browse the 11 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Highest temperature in Cape Town on September 4?" is "20°C" at 49%, meaning the market assigns a 49% chance to that outcome. The next closest outcome is "19°C" at 21%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Highest temperature in Cape Town on September 4?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.