Trader consensus has locked in 19°C as the highest temperature recorded in Buenos Aires on September 15, reflecting official meteorological observations from the Servicio Meteorológico Nacional confirming that daily maximum under clear, stable high-pressure conditions. Mid-September climatology for the city typically features highs of 17–21°C, with light southerly flow limiting warm advection from the north and minimal urban heat island enhancement at the primary measurement site. Model guidance and surface analyses showed no anomalous warming events that day. While final quality-controlled data releases could theoretically prompt minor revisions, historical precedent indicates such adjustments rarely exceed 0.5°C once preliminary readings are issued.
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 15?
19°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$41,340 Vol.
$41,340 Vol.
13°C or below
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
Yes
20°C
No
21°C
No
22°C
No
23°C or higher
No
19°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$41,340 Vol.
$41,340 Vol.
13°C or below
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
Yes
20°C
No
21°C
No
22°C
No
23°C or higher
No
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 13, 2026, 12:56 PM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=saezResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=saezResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus has locked in 19°C as the highest temperature recorded in Buenos Aires on September 15, reflecting official meteorological observations from the Servicio Meteorológico Nacional confirming that daily maximum under clear, stable high-pressure conditions. Mid-September climatology for the city typically features highs of 17–21°C, with light southerly flow limiting warm advection from the north and minimal urban heat island enhancement at the primary measurement site. Model guidance and surface analyses showed no anomalous warming events that day. While final quality-controlled data releases could theoretically prompt minor revisions, historical precedent indicates such adjustments rarely exceed 0.5°C once preliminary readings are issued.
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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