**A strong cold front (frente fria) crossing southeastern Brazil has driven the near-certain market consensus on a 15°C high for São Paulo on September 6.** Official forecasts from INMET, IPMet, and Climatempo show persistent cloud cover, widespread rain, and a post-frontal high-pressure system advecting cooler maritime air, keeping daytime maxima well below the early-September climatological average of 23–24°C. Real-time observations and model consensus indicate the daily peak will occur near 14–15°C amid steady southeast winds and high humidity. This skin-in-the-game trader alignment reflects the low uncertainty in short-range guidance just hours from resolution. Only an unexpectedly rapid frontal clearance or localized warming could push readings toward 17°C or higher, an outcome now assigned negligible probability.
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 6?
Highest temperature in Sao Paulo on September 6?
15°C 99.8%
17°C <1%
20°C <1%
16°C <1%
$61,350 Vol.
$61,350 Vol.
Sep 6, 2026
13°C or below
<1%
14°C
<1%
15°C
100%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C
<1%
22°C
<1%
23°C or higher
<1%
15°C 99.8%
17°C <1%
20°C <1%
16°C <1%
$61,350 Vol.
$61,350 Vol.
Sep 6, 2026
13°C or below
$12,536 Vol.
<1%
14°C
$18,665 Vol.
<1%
15°C
$11,968 Vol.
100%
16°C
$5,243 Vol.
<1%
17°C
$5,634 Vol.
<1%
18°C
$2,111 Vol.
<1%
19°C
$590 Vol.
<1%
20°C
$602 Vol.
<1%
21°C
$1,644 Vol.
<1%
22°C
$1,223 Vol.
<1%
23°C or higher
$1,135 Vol.
<1%
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 6 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.**A strong cold front (frente fria) crossing southeastern Brazil has driven the near-certain market consensus on a 15°C high for São Paulo on September 6.** Official forecasts from INMET, IPMet, and Climatempo show persistent cloud cover, widespread rain, and a post-frontal high-pressure system advecting cooler maritime air, keeping daytime maxima well below the early-September climatological average of 23–24°C. Real-time observations and model consensus indicate the daily peak will occur near 14–15°C amid steady southeast winds and high humidity. This skin-in-the-game trader alignment reflects the low uncertainty in short-range guidance just hours from resolution. Only an unexpectedly rapid frontal clearance or localized warming could push readings toward 17°C or higher, an outcome now assigned negligible probability.
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 6 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 4, 2026, 8:55 AM ET
Volume
$61,350End Date
Sep 6, 2026Market Opened
Sep 4, 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 6 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.**A strong cold front (frente fria) crossing southeastern Brazil has driven the near-certain market consensus on a 15°C high for São Paulo on September 6.** Official forecasts from INMET, IPMet, and Climatempo show persistent cloud cover, widespread rain, and a post-frontal high-pressure system advecting cooler maritime air, keeping daytime maxima well below the early-September climatological average of 23–24°C. Real-time observations and model consensus indicate the daily peak will occur near 14–15°C amid steady southeast winds and high humidity. This skin-in-the-game trader alignment reflects the low uncertainty in short-range guidance just hours from resolution. Only an unexpectedly rapid frontal clearance or localized warming could push readings toward 17°C or higher, an outcome now assigned negligible probability.
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 6 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
$61,350End Date
Sep 6, 2026Market Opened
Sep 4, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...**A strong cold front (frente fria) crossing southeastern Brazil has driven the near-certain market consensus on a 15°C high for São Paulo on September 6.** Official forecasts from INMET, IPMet, and Climatempo show persistent cloud cover, widespread rain, and a post-frontal high-pressure system advecting cooler maritime air, keeping daytime maxima well below the early-September climatological average of 23–24°C. Real-time observations and model consensus indicate the daily peak will occur near 14–15°C amid steady southeast winds and high humidity. This skin-in-the-game trader alignment reflects the low uncertainty in short-range guidance just hours from resolution. Only an unexpectedly rapid frontal clearance or localized warming could push readings toward 17°C or higher, an outcome now assigned negligible probability.
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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