Recent meteorological observations from Sao Paulo on September 11 confirm a minimum temperature of 16°C, aligning with the market's strong 95% implied probability for that outcome. Diurnal cooling under clear to partly cloudy conditions, combined with typical September seasonal patterns featuring overnight lows in the mid-teens Celsius, supported this reading at official monitoring sites. Model consensus and real-time station data showed limited variability, with no significant cold advection or urban heat island effects pushing extremes lower. A shift in resolution criteria, such as reliance on a secondary station reporting 15°C or measurement revisions, represents the primary scenario that could alter the current trader consensus.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Sao Paulo on September 11?
Lowest temperature in Sao Paulo on September 11?
16°C 95%
15°C 1.0%
14°C or below <1%
17°C <1%
$1,402 Vol.
$1,402 Vol.
Sep 11, 2026
14°C or below
No
15°C
No
16°C
Yes
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C or higher
No
16°C 95%
15°C 1.0%
14°C or below <1%
17°C <1%
$1,402 Vol.
$1,402 Vol.
Sep 11, 2026
14°C or below
$65 Vol.
No
15°C
$90 Vol.
No
16°C
$344 Vol.
Yes
17°C
$372 Vol.
No
18°C
$243 Vol.
No
19°C
$104 Vol.
No
20°C
$25 Vol.
No
21°C
$40 Vol.
No
22°C
$40 Vol.
No
23°C
$40 Vol.
No
24°C or higher
$40 Vol.
No
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 11 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=sbgr
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 meteorological observations from Sao Paulo on September 11 confirm a minimum temperature of 16°C, aligning with the market's strong 95% implied probability for that outcome. Diurnal cooling under clear to partly cloudy conditions, combined with typical September seasonal patterns featuring overnight lows in the mid-teens Celsius, supported this reading at official monitoring sites. Model consensus and real-time station data showed limited variability, with no significant cold advection or urban heat island effects pushing extremes lower. A shift in resolution criteria, such as reliance on a secondary station reporting 15°C or measurement revisions, represents the primary scenario that could alter the current trader consensus.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 11 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=sbgr
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 lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=sbgr
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 9, 2026, 8:29 AM ET
Volume
$1,402End Date
Sep 11, 2026Market Opened
Sep 9, 2026, 8:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 11 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=sbgr
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 meteorological observations from Sao Paulo on September 11 confirm a minimum temperature of 16°C, aligning with the market's strong 95% implied probability for that outcome. Diurnal cooling under clear to partly cloudy conditions, combined with typical September seasonal patterns featuring overnight lows in the mid-teens Celsius, supported this reading at official monitoring sites. Model consensus and real-time station data showed limited variability, with no significant cold advection or urban heat island effects pushing extremes lower. A shift in resolution criteria, such as reliance on a secondary station reporting 15°C or measurement revisions, represents the primary scenario that could alter the current trader consensus.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 11 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=sbgr
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 lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=sbgr
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
$1,402End Date
Sep 11, 2026Market Opened
Sep 9, 2026, 8:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Recent meteorological observations from Sao Paulo on September 11 confirm a minimum temperature of 16°C, aligning with the market's strong 95% implied probability for that outcome. Diurnal cooling under clear to partly cloudy conditions, combined with typical September seasonal patterns featuring overnight lows in the mid-teens Celsius, supported this reading at official monitoring sites. Model consensus and real-time station data showed limited variability, with no significant cold advection or urban heat island effects pushing extremes lower. A shift in resolution criteria, such as reliance on a secondary station reporting 15°C or measurement revisions, represents the primary scenario that could alter the current trader consensus.
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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