Recent heavy rain and persistent cloud cover from a strengthening low-pressure system over southeastern Brazil have suppressed daytime heating in São Paulo, keeping maximum temperatures cooler than the September climatological average of 26–27°C. Official forecasts from sources including the Met Office and local monitoring indicate highs of 21–23°C on September 10 amid widespread showers and thunderstorms, with high humidity and reduced solar insolation limiting warming. These conditions align with the closely clustered market-implied probabilities favoring 21–23°C outcomes, reflecting trader consensus on the dominant influence of ongoing instability and limited insolation rather than any rapid clearing trend.
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 10?
Highest temperature in Sao Paulo on September 10?
22°C 27%
23°C 24%
21°C 18%
24°C 13%
NEW
NEW
Sep 10, 2026
17°C or below
<1%
18°C
1%
19°C
<1%
20°C
6%
21°C
18%
22°C
27%
23°C
24%
24°C
13%
25°C
6%
26°C
2%
27°C or higher
2%
22°C 27%
23°C 24%
21°C 18%
24°C 13%
NEW
NEW
Sep 10, 2026
17°C or below
$371 Vol.
<1%
18°C
$32 Vol.
1%
19°C
$283 Vol.
<1%
20°C
$704 Vol.
6%
21°C
$359 Vol.
18%
22°C
$332 Vol.
27%
23°C
$301 Vol.
24%
24°C
$462 Vol.
13%
25°C
$179 Vol.
6%
26°C
$157 Vol.
2%
27°C or higher
$247 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 10 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 heavy rain and persistent cloud cover from a strengthening low-pressure system over southeastern Brazil have suppressed daytime heating in São Paulo, keeping maximum temperatures cooler than the September climatological average of 26–27°C. Official forecasts from sources including the Met Office and local monitoring indicate highs of 21–23°C on September 10 amid widespread showers and thunderstorms, with high humidity and reduced solar insolation limiting warming. These conditions align with the closely clustered market-implied probabilities favoring 21–23°C outcomes, reflecting trader consensus on the dominant influence of ongoing instability and limited insolation rather than any rapid clearing trend.
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 10 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 8, 2026, 8:55 AM ET
Volume
$3,428End Date
Sep 10, 2026Market Opened
Sep 8, 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 10 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 heavy rain and persistent cloud cover from a strengthening low-pressure system over southeastern Brazil have suppressed daytime heating in São Paulo, keeping maximum temperatures cooler than the September climatological average of 26–27°C. Official forecasts from sources including the Met Office and local monitoring indicate highs of 21–23°C on September 10 amid widespread showers and thunderstorms, with high humidity and reduced solar insolation limiting warming. These conditions align with the closely clustered market-implied probabilities favoring 21–23°C outcomes, reflecting trader consensus on the dominant influence of ongoing instability and limited insolation rather than any rapid clearing trend.
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 10 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
$3,428End Date
Sep 10, 2026Market Opened
Sep 8, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...Recent heavy rain and persistent cloud cover from a strengthening low-pressure system over southeastern Brazil have suppressed daytime heating in São Paulo, keeping maximum temperatures cooler than the September climatological average of 26–27°C. Official forecasts from sources including the Met Office and local monitoring indicate highs of 21–23°C on September 10 amid widespread showers and thunderstorms, with high humidity and reduced solar insolation limiting warming. These conditions align with the closely clustered market-implied probabilities favoring 21–23°C outcomes, reflecting trader consensus on the dominant influence of ongoing instability and limited insolation rather than any rapid clearing trend.
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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