Recent cold air advection from a polar mass has suppressed temperatures across São Paulo, with Sep 7 highs near 13–14°C under overcast skies and light rain. Forecast models from sources including the Met Office and Yr.no indicate gradual moderation on Sep 8 as the system shifts, supporting afternoon maxima centered on 19–21°C amid persistent cloud cover and easterly flow. This aligns with market-implied odds favoring 20°C (35%) and 21°C (24.5%), reflecting ensemble consensus on limited diurnal warming. Historical September averages near 22–24°C provide context, though the current synoptic pattern favors the lower end. Updated model runs and official INMET briefings expected overnight will refine resolution criteria for the daily maximum.
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 8?
Highest temperature in Sao Paulo on September 8?
20°C 35%
21°C 25%
19°C 18%
22°C 9%
NEW
NEW
Sep 8, 2026
15°C or below
1%
16°C
1%
17°C
4%
18°C
8%
19°C
18%
20°C
35%
21°C
25%
22°C
9%
23°C
3%
24°C
1%
25°C or higher
<1%
20°C 35%
21°C 25%
19°C 18%
22°C 9%
NEW
NEW
Sep 8, 2026
15°C or below
$323 Vol.
1%
16°C
$248 Vol.
1%
17°C
$395 Vol.
4%
18°C
$402 Vol.
8%
19°C
$648 Vol.
18%
20°C
$875 Vol.
35%
21°C
$570 Vol.
25%
22°C
$1,137 Vol.
9%
23°C
$460 Vol.
3%
24°C
$136 Vol.
1%
25°C or higher
$286 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 8 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 cold air advection from a polar mass has suppressed temperatures across São Paulo, with Sep 7 highs near 13–14°C under overcast skies and light rain. Forecast models from sources including the Met Office and Yr.no indicate gradual moderation on Sep 8 as the system shifts, supporting afternoon maxima centered on 19–21°C amid persistent cloud cover and easterly flow. This aligns with market-implied odds favoring 20°C (35%) and 21°C (24.5%), reflecting ensemble consensus on limited diurnal warming. Historical September averages near 22–24°C provide context, though the current synoptic pattern favors the lower end. Updated model runs and official INMET briefings expected overnight will refine resolution criteria for the daily maximum.
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 8 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 6, 2026, 8:55 AM ET
Volume
$5,480End Date
Sep 8, 2026Market Opened
Sep 6, 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 8 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 cold air advection from a polar mass has suppressed temperatures across São Paulo, with Sep 7 highs near 13–14°C under overcast skies and light rain. Forecast models from sources including the Met Office and Yr.no indicate gradual moderation on Sep 8 as the system shifts, supporting afternoon maxima centered on 19–21°C amid persistent cloud cover and easterly flow. This aligns with market-implied odds favoring 20°C (35%) and 21°C (24.5%), reflecting ensemble consensus on limited diurnal warming. Historical September averages near 22–24°C provide context, though the current synoptic pattern favors the lower end. Updated model runs and official INMET briefings expected overnight will refine resolution criteria for the daily maximum.
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 8 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
$5,480End Date
Sep 8, 2026Market Opened
Sep 6, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...Recent cold air advection from a polar mass has suppressed temperatures across São Paulo, with Sep 7 highs near 13–14°C under overcast skies and light rain. Forecast models from sources including the Met Office and Yr.no indicate gradual moderation on Sep 8 as the system shifts, supporting afternoon maxima centered on 19–21°C amid persistent cloud cover and easterly flow. This aligns with market-implied odds favoring 20°C (35%) and 21°C (24.5%), reflecting ensemble consensus on limited diurnal warming. Historical September averages near 22–24°C provide context, though the current synoptic pattern favors the lower end. Updated model runs and official INMET briefings expected overnight will refine resolution criteria for the daily maximum.
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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