Trader consensus has locked in 22°C as the highest temperature recorded in Sao Paulo on September 9, driven by official daily observations from the Brazilian National Institute of Meteorology (INMET) confirming a maximum of exactly that value. Early September climatology in the region features stable subtropical high pressure and moderate insolation, producing typical highs near 22–24°C without active fronts or heat advection. With the full 24-hour observation window now closed and preliminary station data publicly available, market-implied odds reflect the absence of measurement uncertainty or pending revisions. Only an unlikely post-publication correction to raw station logs or a change in the precise reporting methodology could alter the outcome, though such adjustments occur infrequently after initial verification.
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 9?
Highest temperature in Sao Paulo on September 9?
22°C 100.0%
15°C or below <1%
16°C <1%
17°C <1%
$41,790 Vol.
$41,790 Vol.
Sep 9, 2026
15°C or below
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
Yes
23°C
No
24°C
No
25°C or higher
No
22°C 100.0%
15°C or below <1%
16°C <1%
17°C <1%
$41,790 Vol.
$41,790 Vol.
Sep 9, 2026
15°C or below
$1,333 Vol.
No
16°C
$1,238 Vol.
No
17°C
$3,449 Vol.
No
18°C
$4,207 Vol.
No
19°C
$3,368 Vol.
No
20°C
$3,038 Vol.
No
21°C
$6,517 Vol.
No
22°C
$5,604 Vol.
Yes
23°C
$5,667 Vol.
No
24°C
$3,451 Vol.
No
25°C or higher
$3,916 Vol.
No
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 9 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.Trader consensus has locked in 22°C as the highest temperature recorded in Sao Paulo on September 9, driven by official daily observations from the Brazilian National Institute of Meteorology (INMET) confirming a maximum of exactly that value. Early September climatology in the region features stable subtropical high pressure and moderate insolation, producing typical highs near 22–24°C without active fronts or heat advection. With the full 24-hour observation window now closed and preliminary station data publicly available, market-implied odds reflect the absence of measurement uncertainty or pending revisions. Only an unlikely post-publication correction to raw station logs or a change in the precise reporting methodology could alter the outcome, though such adjustments occur infrequently after initial verification.
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 9 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 7, 2026, 8:55 AM ET
Volume
$41,790End Date
Sep 9, 2026Market Opened
Sep 7, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 9 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.Trader consensus has locked in 22°C as the highest temperature recorded in Sao Paulo on September 9, driven by official daily observations from the Brazilian National Institute of Meteorology (INMET) confirming a maximum of exactly that value. Early September climatology in the region features stable subtropical high pressure and moderate insolation, producing typical highs near 22–24°C without active fronts or heat advection. With the full 24-hour observation window now closed and preliminary station data publicly available, market-implied odds reflect the absence of measurement uncertainty or pending revisions. Only an unlikely post-publication correction to raw station logs or a change in the precise reporting methodology could alter the outcome, though such adjustments occur infrequently after initial verification.
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 9 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
$41,790End Date
Sep 9, 2026Market Opened
Sep 7, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus has locked in 22°C as the highest temperature recorded in Sao Paulo on September 9, driven by official daily observations from the Brazilian National Institute of Meteorology (INMET) confirming a maximum of exactly that value. Early September climatology in the region features stable subtropical high pressure and moderate insolation, producing typical highs near 22–24°C without active fronts or heat advection. With the full 24-hour observation window now closed and preliminary station data publicly available, market-implied odds reflect the absence of measurement uncertainty or pending revisions. Only an unlikely post-publication correction to raw station logs or a change in the precise reporting methodology could alter the outcome, though such adjustments occur infrequently after initial verification.
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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