The market's strong consensus on a 12°C daily high stems from consistent short-range forecasts across models and observational networks showing persistent overcast skies, strong southerly flow, and limited daytime insolation on September 12. These conditions suppress boundary-layer warming relative to September climatological averages near 15–17°C, with surface observations and guidance from agencies indicating maxima clustered tightly around 10–12°C amid high humidity and light precipitation chances. Trader positioning aligns with this narrow uncertainty range, as resolution hinges on official maximum readings rather than model projections alone. A sudden shift to clearer skies or stronger mixing could push readings modestly higher, though current steering patterns and stability make such outcomes unlikely before the observation window closes.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Buenos Aires on September 12?
Highest temperature in Buenos Aires on September 12?
12°C 98%
13°C 3%
14°C <1%
15°C <1%
NEW
$30,380 Vol.
NEW
$30,380 Vol.
Sep 12, 2026
8°C or below
<1%
9°C
<1%
10°C
<1%
11°C
<1%
12°C
98%
13°C
3%
14°C
1%
15°C
<1%
16°C
<1%
17°C
<1%
18°C or higher
<1%
12°C 98%
13°C 3%
14°C <1%
15°C <1%
NEW
$30,380 Vol.
NEW
$30,380 Vol.
Sep 12, 2026
8°C or below
$340 Vol.
<1%
9°C
$656 Vol.
<1%
10°C
$1,450 Vol.
<1%
11°C
$8,657 Vol.
<1%
12°C
$6,393 Vol.
98%
13°C
$8,034 Vol.
3%
14°C
$2,811 Vol.
1%
15°C
$1,067 Vol.
<1%
16°C
$225 Vol.
<1%
17°C
$356 Vol.
<1%
18°C or higher
$391 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Minister Pistarini Intl Airport Station in degrees Celsius on 12 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=saez
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 market's strong consensus on a 12°C daily high stems from consistent short-range forecasts across models and observational networks showing persistent overcast skies, strong southerly flow, and limited daytime insolation on September 12. These conditions suppress boundary-layer warming relative to September climatological averages near 15–17°C, with surface observations and guidance from agencies indicating maxima clustered tightly around 10–12°C amid high humidity and light precipitation chances. Trader positioning aligns with this narrow uncertainty range, as resolution hinges on official maximum readings rather than model projections alone. A sudden shift to clearer skies or stronger mixing could push readings modestly higher, though current steering patterns and stability make such outcomes unlikely before the observation window closes.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Minister Pistarini Intl Airport Station in degrees Celsius on 12 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=saez
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=saez
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 10, 2026, 8:55 AM ET
Volume
$30,380End Date
Sep 12, 2026Market Opened
Sep 10, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=saezResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Minister Pistarini Intl Airport Station in degrees Celsius on 12 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=saez
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 market's strong consensus on a 12°C daily high stems from consistent short-range forecasts across models and observational networks showing persistent overcast skies, strong southerly flow, and limited daytime insolation on September 12. These conditions suppress boundary-layer warming relative to September climatological averages near 15–17°C, with surface observations and guidance from agencies indicating maxima clustered tightly around 10–12°C amid high humidity and light precipitation chances. Trader positioning aligns with this narrow uncertainty range, as resolution hinges on official maximum readings rather than model projections alone. A sudden shift to clearer skies or stronger mixing could push readings modestly higher, though current steering patterns and stability make such outcomes unlikely before the observation window closes.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Minister Pistarini Intl Airport Station in degrees Celsius on 12 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=saez
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=saez
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
$30,380End Date
Sep 12, 2026Market Opened
Sep 10, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=saezResolver
0x69c47De9D...The market's strong consensus on a 12°C daily high stems from consistent short-range forecasts across models and observational networks showing persistent overcast skies, strong southerly flow, and limited daytime insolation on September 12. These conditions suppress boundary-layer warming relative to September climatological averages near 15–17°C, with surface observations and guidance from agencies indicating maxima clustered tightly around 10–12°C amid high humidity and light precipitation chances. Trader positioning aligns with this narrow uncertainty range, as resolution hinges on official maximum readings rather than model projections alone. A sudden shift to clearer skies or stronger mixing could push readings modestly higher, though current steering patterns and stability make such outcomes unlikely before the observation window closes.
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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