**Forecast consensus from multiple models positions 26–28°C as the most probable range for São Paulo’s maximum temperature on September 3, 2026, aligning closely with the market’s leading outcomes (27°C at 42.5%, 26°C at 29%, 28°C at 16.5%).** Clear to mostly sunny skies, light winds (generally under 15 km/h from variable or northerly directions), and dry conditions are expected to support strong daytime heating under a building high-pressure system. This follows cooler, partly rainy conditions earlier in the week (highs near 19–20°C on September 2). September climatology shows average highs around 23°C, so the current setup reflects a brief warming pulse typical of early spring transitions in the subtropical region at ~760 m elevation. Model runs (including global and regional guidance) converge on afternoon peaks near 25–28°C, with limited spread due to minimal cloud cover or moisture. Traders appear to be weighting the higher end of this range, consistent with recent warming trends and the absence of significant synoptic cooling influences. Resolution will depend on official observations, likely from Congonhas or other INMET stations, with any late adjustments to cloud cover or wind the main variables that could shift the outcome within the narrow 26–28°C band.
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 3?
Highest temperature in Sao Paulo on September 3?
27°C 43%
26°C 29%
28°C 17%
25°C 7%
NEW
NEW
Sep 3, 2026
22°C or below
1%
23°C
3%
24°C
5%
25°C
7%
26°C
29%
27°C
43%
28°C
17%
29°C
5%
30°C
1%
31°C
1%
32°C or higher
<1%
27°C 43%
26°C 29%
28°C 17%
25°C 7%
NEW
NEW
Sep 3, 2026
22°C or below
$15 Vol.
1%
23°C
$20 Vol.
3%
24°C
$61 Vol.
5%
25°C
$79 Vol.
7%
26°C
$156 Vol.
29%
27°C
$112 Vol.
43%
28°C
$270 Vol.
17%
29°C
$33 Vol.
5%
30°C
$15 Vol.
1%
31°C
$23 Vol.
1%
32°C or higher
$28 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 3 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.**Forecast consensus from multiple models positions 26–28°C as the most probable range for São Paulo’s maximum temperature on September 3, 2026, aligning closely with the market’s leading outcomes (27°C at 42.5%, 26°C at 29%, 28°C at 16.5%).**
Clear to mostly sunny skies, light winds (generally under 15 km/h from variable or northerly directions), and dry conditions are expected to support strong daytime heating under a building high-pressure system. This follows cooler, partly rainy conditions earlier in the week (highs near 19–20°C on September 2). September climatology shows average highs around 23°C, so the current setup reflects a brief warming pulse typical of early spring transitions in the subtropical region at ~760 m elevation.
Model runs (including global and regional guidance) converge on afternoon peaks near 25–28°C, with limited spread due to minimal cloud cover or moisture. Traders appear to be weighting the higher end of this range, consistent with recent warming trends and the absence of significant synoptic cooling influences. Resolution will depend on official observations, likely from Congonhas or other INMET stations, with any late adjustments to cloud cover or wind the main variables that could shift the outcome within the narrow 26–28°C band.
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 3 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 1, 2026, 8:55 AM ET
Volume
$812End Date
Sep 3, 2026Market Opened
Sep 1, 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 3 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.**Forecast consensus from multiple models positions 26–28°C as the most probable range for São Paulo’s maximum temperature on September 3, 2026, aligning closely with the market’s leading outcomes (27°C at 42.5%, 26°C at 29%, 28°C at 16.5%).**
Clear to mostly sunny skies, light winds (generally under 15 km/h from variable or northerly directions), and dry conditions are expected to support strong daytime heating under a building high-pressure system. This follows cooler, partly rainy conditions earlier in the week (highs near 19–20°C on September 2). September climatology shows average highs around 23°C, so the current setup reflects a brief warming pulse typical of early spring transitions in the subtropical region at ~760 m elevation.
Model runs (including global and regional guidance) converge on afternoon peaks near 25–28°C, with limited spread due to minimal cloud cover or moisture. Traders appear to be weighting the higher end of this range, consistent with recent warming trends and the absence of significant synoptic cooling influences. Resolution will depend on official observations, likely from Congonhas or other INMET stations, with any late adjustments to cloud cover or wind the main variables that could shift the outcome within the narrow 26–28°C band.
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 3 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
$812End Date
Sep 3, 2026Market Opened
Sep 1, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...**Forecast consensus from multiple models positions 26–28°C as the most probable range for São Paulo’s maximum temperature on September 3, 2026, aligning closely with the market’s leading outcomes (27°C at 42.5%, 26°C at 29%, 28°C at 16.5%).** Clear to mostly sunny skies, light winds (generally under 15 km/h from variable or northerly directions), and dry conditions are expected to support strong daytime heating under a building high-pressure system. This follows cooler, partly rainy conditions earlier in the week (highs near 19–20°C on September 2). September climatology shows average highs around 23°C, so the current setup reflects a brief warming pulse typical of early spring transitions in the subtropical region at ~760 m elevation. Model runs (including global and regional guidance) converge on afternoon peaks near 25–28°C, with limited spread due to minimal cloud cover or moisture. Traders appear to be weighting the higher end of this range, consistent with recent warming trends and the absence of significant synoptic cooling influences. Resolution will depend on official observations, likely from Congonhas or other INMET stations, with any late adjustments to cloud cover or wind the main variables that could shift the outcome within the narrow 26–28°C band.
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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