Recent passage of a cold front across southeastern Brazil has suppressed temperatures through September 1–2, with São Paulo recording maxima near 21 °C amid widespread showers and elevated humidity. Clearing skies and northerly flow on September 3 are expected to allow greater insolation and boundary-layer warming, pushing the daily maximum into the mid-20s °C. Official guidance and ensemble forecasts cluster around 25–27 °C, with differences driven by small variations in cloud cover, wind speed, and mixing depth. The market’s tight spread among 26–28 °C outcomes reflects this modest but consequential uncertainty in the precise peak value ahead of final observational data.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Sao Paulo on September 3?
Highest temperature in Sao Paulo on September 3?
27°C 38%
26°C 28%
28°C 22%
25°C 9%
NEW
NEW
Sep 3, 2026
22°C or below
2%
23°C
2%
24°C
7%
25°C
9%
26°C
28%
27°C
38%
28°C
22%
29°C
4%
30°C
5%
31°C
2%
32°C or higher
2%
27°C 38%
26°C 28%
28°C 22%
25°C 9%
NEW
NEW
Sep 3, 2026
22°C or below
$5 Vol.
2%
23°C
$5 Vol.
2%
24°C
$25 Vol.
7%
25°C
$5 Vol.
9%
26°C
$51 Vol.
28%
27°C
$50 Vol.
38%
28°C
$88 Vol.
22%
29°C
$5 Vol.
4%
30°C
$15 Vol.
5%
31°C
$10 Vol.
2%
32°C or higher
$10 Vol.
2%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 3 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=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 passage of a cold front across southeastern Brazil has suppressed temperatures through September 1–2, with São Paulo recording maxima near 21 °C amid widespread showers and elevated humidity. Clearing skies and northerly flow on September 3 are expected to allow greater insolation and boundary-layer warming, pushing the daily maximum into the mid-20s °C. Official guidance and ensemble forecasts cluster around 25–27 °C, with differences driven by small variations in cloud cover, wind speed, and mixing depth. The market’s tight spread among 26–28 °C outcomes reflects this modest but consequential uncertainty in the precise peak value ahead of final observational data.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 3 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=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 highest 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 1, 2026, 8:55 AM ET
Volume
$269End Date
Sep 3, 2026Market Opened
Sep 1, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 3 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=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 passage of a cold front across southeastern Brazil has suppressed temperatures through September 1–2, with São Paulo recording maxima near 21 °C amid widespread showers and elevated humidity. Clearing skies and northerly flow on September 3 are expected to allow greater insolation and boundary-layer warming, pushing the daily maximum into the mid-20s °C. Official guidance and ensemble forecasts cluster around 25–27 °C, with differences driven by small variations in cloud cover, wind speed, and mixing depth. The market’s tight spread among 26–28 °C outcomes reflects this modest but consequential uncertainty in the precise peak value ahead of final observational data.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 3 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=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 highest 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
$269End Date
Sep 3, 2026Market Opened
Sep 1, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...Recent passage of a cold front across southeastern Brazil has suppressed temperatures through September 1–2, with São Paulo recording maxima near 21 °C amid widespread showers and elevated humidity. Clearing skies and northerly flow on September 3 are expected to allow greater insolation and boundary-layer warming, pushing the daily maximum into the mid-20s °C. Official guidance and ensemble forecasts cluster around 25–27 °C, with differences driven by small variations in cloud cover, wind speed, and mixing depth. The market’s tight spread among 26–28 °C outcomes reflects this modest but consequential uncertainty in the precise peak value ahead of final observational 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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