Recent southeast winds have advected cooler air into Buenos Aires, driving maximum temperatures well below the September climatological average of roughly 19–20 °C. Official forecasts and model guidance from sources including the National Meteorological Service and international ensembles indicate a high near 11–12 °C under overcast skies and moderate southerly flow, with limited diurnal warming. This consensus underpins the market’s strong weighting toward 12 °C (53.5 %) and 11 °C (24.5 %), while the modest probability on 13 °C reflects residual uncertainty in boundary-layer mixing and exact timing of any clearing. No significant forecast shifts have emerged in the past 24 hours, keeping trader focus on the ongoing cold-air intrusion.
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 53%
13°C 25%
11°C 10%
10°C 5%
NEW
$12,755 Vol.
NEW
$12,755 Vol.
Sep 12, 2026
8°C or below
<1%
9°C
2%
10°C
5%
11°C
10%
12°C
53%
13°C
25%
14°C
4%
15°C
1%
16°C
<1%
17°C
<1%
18°C or higher
<1%
12°C 53%
13°C 25%
11°C 10%
10°C 5%
NEW
$12,755 Vol.
NEW
$12,755 Vol.
Sep 12, 2026
8°C or below
$195 Vol.
<1%
9°C
$118 Vol.
2%
10°C
$578 Vol.
5%
11°C
$3,280 Vol.
10%
12°C
$2,816 Vol.
53%
13°C
$4,475 Vol.
25%
14°C
$195 Vol.
4%
15°C
$309 Vol.
1%
16°C
$42 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.Recent southeast winds have advected cooler air into Buenos Aires, driving maximum temperatures well below the September climatological average of roughly 19–20 °C. Official forecasts and model guidance from sources including the National Meteorological Service and international ensembles indicate a high near 11–12 °C under overcast skies and moderate southerly flow, with limited diurnal warming. This consensus underpins the market’s strong weighting toward 12 °C (53.5 %) and 11 °C (24.5 %), while the modest probability on 13 °C reflects residual uncertainty in boundary-layer mixing and exact timing of any clearing. No significant forecast shifts have emerged in the past 24 hours, keeping trader focus on the ongoing cold-air intrusion.
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
$12,755End 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.Recent southeast winds have advected cooler air into Buenos Aires, driving maximum temperatures well below the September climatological average of roughly 19–20 °C. Official forecasts and model guidance from sources including the National Meteorological Service and international ensembles indicate a high near 11–12 °C under overcast skies and moderate southerly flow, with limited diurnal warming. This consensus underpins the market’s strong weighting toward 12 °C (53.5 %) and 11 °C (24.5 %), while the modest probability on 13 °C reflects residual uncertainty in boundary-layer mixing and exact timing of any clearing. No significant forecast shifts have emerged in the past 24 hours, keeping trader focus on the ongoing cold-air intrusion.
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
$12,755End Date
Sep 12, 2026Market Opened
Sep 10, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=saezResolver
0x69c47De9D...Recent southeast winds have advected cooler air into Buenos Aires, driving maximum temperatures well below the September climatological average of roughly 19–20 °C. Official forecasts and model guidance from sources including the National Meteorological Service and international ensembles indicate a high near 11–12 °C under overcast skies and moderate southerly flow, with limited diurnal warming. This consensus underpins the market’s strong weighting toward 12 °C (53.5 %) and 11 °C (24.5 %), while the modest probability on 13 °C reflects residual uncertainty in boundary-layer mixing and exact timing of any clearing. No significant forecast shifts have emerged in the past 24 hours, keeping trader focus on the ongoing cold-air intrusion.
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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