**A cold polar air mass has driven trader consensus toward a modest daily maximum of 13–14°C in São Paulo on September 7.** Official Brazilian forecasts and international models (Climatempo, INMET guidance, Yr.no, Met Office) indicate persistent cloud cover, southeasterly winds, and light drizzle or garoa that will suppress daytime heating following a sharp temperature drop from the prior warm spell. Historical September averages near 23–24°C underscore the anomaly, while model spreads reflect uncertainty in exact cloud thickness and boundary-layer mixing. With resolution hinging on the official highest hourly reading, traders weigh the latest model runs and airport observations that could still shift the outcome between 12°C and 15°C.
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 7?
Highest temperature in Sao Paulo on September 7?
13°C 37%
14°C 35%
12°C 15%
11°C 9%
NEW
$17,748 Vol.
NEW
$17,748 Vol.
Sep 7, 2026
6°C or below
<1%
7°C
<1%
8°C
<1%
9°C
<1%
10°C
<1%
11°C
9%
12°C
15%
13°C
37%
14°C
35%
15°C
7%
16°C or higher
3%
13°C 37%
14°C 35%
12°C 15%
11°C 9%
NEW
$17,748 Vol.
NEW
$17,748 Vol.
Sep 7, 2026
6°C or below
$1,247 Vol.
<1%
7°C
$1,223 Vol.
<1%
8°C
$1,223 Vol.
<1%
9°C
$62 Vol.
<1%
10°C
$377 Vol.
<1%
11°C
$2,518 Vol.
9%
12°C
$4,814 Vol.
15%
13°C
$1,960 Vol.
37%
14°C
$2,555 Vol.
35%
15°C
$880 Vol.
7%
16°C or higher
$890 Vol.
3%
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 7 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 cold polar air mass has driven trader consensus toward a modest daily maximum of 13–14°C in São Paulo on September 7.** Official Brazilian forecasts and international models (Climatempo, INMET guidance, Yr.no, Met Office) indicate persistent cloud cover, southeasterly winds, and light drizzle or garoa that will suppress daytime heating following a sharp temperature drop from the prior warm spell. Historical September averages near 23–24°C underscore the anomaly, while model spreads reflect uncertainty in exact cloud thickness and boundary-layer mixing. With resolution hinging on the official highest hourly reading, traders weigh the latest model runs and airport observations that could still shift the outcome between 12°C and 15°C.
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 7 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 5, 2026, 8:55 AM ET
Volume
$17,748End Date
Sep 7, 2026Market Opened
Sep 5, 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 7 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 cold polar air mass has driven trader consensus toward a modest daily maximum of 13–14°C in São Paulo on September 7.** Official Brazilian forecasts and international models (Climatempo, INMET guidance, Yr.no, Met Office) indicate persistent cloud cover, southeasterly winds, and light drizzle or garoa that will suppress daytime heating following a sharp temperature drop from the prior warm spell. Historical September averages near 23–24°C underscore the anomaly, while model spreads reflect uncertainty in exact cloud thickness and boundary-layer mixing. With resolution hinging on the official highest hourly reading, traders weigh the latest model runs and airport observations that could still shift the outcome between 12°C and 15°C.
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 7 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
$17,748End Date
Sep 7, 2026Market Opened
Sep 5, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...**A cold polar air mass has driven trader consensus toward a modest daily maximum of 13–14°C in São Paulo on September 7.** Official Brazilian forecasts and international models (Climatempo, INMET guidance, Yr.no, Met Office) indicate persistent cloud cover, southeasterly winds, and light drizzle or garoa that will suppress daytime heating following a sharp temperature drop from the prior warm spell. Historical September averages near 23–24°C underscore the anomaly, while model spreads reflect uncertainty in exact cloud thickness and boundary-layer mixing. With resolution hinging on the official highest hourly reading, traders weigh the latest model runs and airport observations that could still shift the outcome between 12°C and 15°C.
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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