Recent ensemble forecasts for São Paulo on September 10 indicate minimum temperatures most likely between 15–18°C amid widespread cloud cover and rain from an advancing frontal system, producing the balanced market-implied odds across that range and the tails at 13°C or below versus 23°C or higher. Persistent precipitation and high humidity limit nocturnal radiative cooling while northerly winds may introduce slightly warmer air masses, keeping the daily low from dropping sharply or rising notably. Official INMET alerts for storms through September 9 and extended rain potential through the 13th underscore this moderating influence, consistent with climatological September minima near 14–16°C but adjusted for current synoptic patterns. Updated model runs and overnight observations from the São Paulo station will provide the final resolution data.
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 10?
Lowest temperature in Sao Paulo on September 10?
13°C or below 80%
23°C or higher 77%
19°C 39%
18°C 29%
NEW
NEW
Sep 10, 2026
13°C or below
80%
14°C
17%
15°C
19%
16°C
15%
17°C
26%
18°C
29%
19°C
39%
20°C
28%
21°C
23%
22°C
23%
23°C or higher
77%
13°C or below 80%
23°C or higher 77%
19°C 39%
18°C 29%
NEW
NEW
Sep 10, 2026
13°C or below
$0 Vol.
80%
14°C
$0 Vol.
17%
15°C
$0 Vol.
19%
16°C
$0 Vol.
15%
17°C
$0 Vol.
26%
18°C
$0 Vol.
29%
19°C
$0 Vol.
39%
20°C
$0 Vol.
28%
21°C
$0 Vol.
23%
22°C
$0 Vol.
23%
23°C or higher
$0 Vol.
77%
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 10 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 ensemble forecasts for São Paulo on September 10 indicate minimum temperatures most likely between 15–18°C amid widespread cloud cover and rain from an advancing frontal system, producing the balanced market-implied odds across that range and the tails at 13°C or below versus 23°C or higher. Persistent precipitation and high humidity limit nocturnal radiative cooling while northerly winds may introduce slightly warmer air masses, keeping the daily low from dropping sharply or rising notably. Official INMET alerts for storms through September 9 and extended rain potential through the 13th underscore this moderating influence, consistent with climatological September minima near 14–16°C but adjusted for current synoptic patterns. Updated model runs and overnight observations from the São Paulo station will provide the final resolution data.
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 10 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 8, 2026, 8:28 AM ET
Volume
$0End Date
Sep 10, 2026Market Opened
Sep 8, 2026, 8:28 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...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 10 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 ensemble forecasts for São Paulo on September 10 indicate minimum temperatures most likely between 15–18°C amid widespread cloud cover and rain from an advancing frontal system, producing the balanced market-implied odds across that range and the tails at 13°C or below versus 23°C or higher. Persistent precipitation and high humidity limit nocturnal radiative cooling while northerly winds may introduce slightly warmer air masses, keeping the daily low from dropping sharply or rising notably. Official INMET alerts for storms through September 9 and extended rain potential through the 13th underscore this moderating influence, consistent with climatological September minima near 14–16°C but adjusted for current synoptic patterns. Updated model runs and overnight observations from the São Paulo station will provide the final resolution data.
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 10 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
$0End Date
Sep 10, 2026Market Opened
Sep 8, 2026, 8:28 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...Recent ensemble forecasts for São Paulo on September 10 indicate minimum temperatures most likely between 15–18°C amid widespread cloud cover and rain from an advancing frontal system, producing the balanced market-implied odds across that range and the tails at 13°C or below versus 23°C or higher. Persistent precipitation and high humidity limit nocturnal radiative cooling while northerly winds may introduce slightly warmer air masses, keeping the daily low from dropping sharply or rising notably. Official INMET alerts for storms through September 9 and extended rain potential through the 13th underscore this moderating influence, consistent with climatological September minima near 14–16°C but adjusted for current synoptic patterns. Updated model runs and overnight observations from the São Paulo station will provide the final resolution data.
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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